International Workshop on
Future Linear Colliders,
LCWS2024

提出物レポート

https://agenda.linearcollider.org/e/lcws2024

International W ⋯ / 提出物レポート
投稿 ID: 1

Preliminary Investigation of a Hi ⋯タイプ: Oral presentation (in person)

Preliminary Investigation of a Higgs Factory basedon Proton-Driven Plasma Wakefield Acceleration
2024 年 7 月 9 日火曜日 10:00 (20 分)
A Higgs Factory is considered the highest priority next collider project by the high-energy physics
community. Very advanced designs based on radio-frequency cavities exist, and variations on
this approach are still being developed. Recently, also an option based on electron-bunch driven
plasma wakefield acceleration has been proposed. In this article, we discuss a further option basedon proton-driven plasma wakefield acceleration. This option has significant potential advantages
due to the high energy of the plasma wakefield driver, simplifying the plasma acceleration stage,
and due to the breadth of particle physics research it will make possible. Its success will depend
on further developments in producing compact high-energy proton bunches at a high rate.

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主著者: FARMER, John Patrick (Max Planck Society (DE))
共著者: PUKHOV, Alexander; CALDWELL, Allen Christopher (Max Planck Society (DE))
発表者: FARMER, John Patrick (Max Planck Society (DE))
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 1 をご覧ください。

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Exploring the Electromagnetically ⋯投稿 ID: 2

タイプ: Poster (in person)

Exploring the Electromagnetically Interacting Dark
Matter at the International Linear Collider
2024 年 7 月 8 日月曜日 17:30 (20 分)
Dark Matter being electrically neutral does not participate in electromagnetic interactions at leading order. However, we discuss here fermionic dark matter (DM) with permanent magnetic andelectric dipole moment that interacts electromagnetically with photons at loop-level through adimension-5 operator. We discuss the search prospect of the dark matter at the proposed International Linear Collider (ILC) and constrain the parameter space in the plane of the DM mass andthe cutoff scale Λ. At the 500 GeV ILC with 4 ab−1 of integrated luminosity we probed the monophoton channel and utilizing the advantages of beam polarization we obtained an upper bound on
the cutoff scale that reaches up to Λ = 3.72 TeV.

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Yes

主著者:

KUMAR SHARMA, MANISH (Birla Institute of Technology and Science pilani, Goa Cam-

pus)

発表者:

KUMAR SHARMA, MANISH (Birla Institute of Technology and Science pilani, Goa Cam-pus)

セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 3

The top quark EW couplings in t ⋯タイプ: Oral presentation (in person)

The top quark EW couplings in the SMEFT
2024 年 7 月 9 日火曜日 11:00 (20 分)
The electro-weak couplings of the top quark are directly accessible in rare “top+X” production
processes at the LHC, where top quark pairs or single top quark are produced in associations withbosons. We present a new analysis of the top sector of the Standard Model EFT. The fit is based ona fully NLO parameterization and includes the most recent (differential) results from ATLAS and
CMS. We show that run 2 of the LHC allows, for the first time, to overconstrain the qqttbar andtwo-fermion operator coefficients and yields competitive bounds. We compare the current bounds
to projections for the HL-LHC and future lepton colliders, that can yield powerful constraints.

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主著者: Dr CORNET, Fernando (Case Western Reserve); CORNET-GOMEZ, Fernando (Case Western
Reserve University); VOS, Marcel (IFIC (UVEG/CSIC) Valencia); MIRALLES LOPEZ, Marcos (Univ. of
Valencia and CSIC (ES)); Dr MORENO LLACER, Maria (IFIC, (CSIC - Univ. of Valencia)); MIRALLES,
Victor (INFN Roma1)

発表者: Dr CORNET, Fernando (Case Western Reserve); CORNET-GOMEZ, Fernando (Case Western
Reserve University)

セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 4

High Granularity Readout TPC R ⋯タイプ: Oral presentation (in person)

High Granularity Readout TPC R&D for Tera-Z at the
Future e+e- Collider
2024 年 7 月 10 日水曜日 10:00 (20 分)
The future linear and circular electron positron colliders were been proposed as a Higgs and ahigh luminosity Z factory in last few years. The detector conceptual design of a updated detector
consists of a tracking system, which is Time Projection Chamber (TPC) detector as the main trackwith the high precision (about 100µm overall drift length at 3T magnetic field) spatial resolution
device in the large 3D volume, especially for the case of the machine operating at the high luminosity Z pole (Tera-Z at 2T magnetic field). Aimed to Higgs and the flavor physics requirements,
the tracking system required the high precision performance,including the spatial resolution, themomentum resolution and the good particle identification detection (PID).
TPC detection technology also required the longitudinal time resolution of about 100ns and thephysics goals require the very good separation power with the cluster counting to be considered.
The simulation and PID resolution show TPC technology potential to extend Tera-Z at the futuree+e- collider. In this talk, the feasibility and status of high precision TPC as the main track detector
for e+e collider will be presented. The simulation results of the pad/pixelated TPC technology
for e+e- collider will be given. Compared with the pad readout using the simulation, the highgranularity readout TPC option will obtain the better spatial resolution of single electrons, thevery high detection efficiency in excellent tracking and good PID performance (less than 3σ).

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主著者: Dr DAI, Hongliang (Institute of High Energy Physics, CAS); Dr QI, Huirong (Institute of HighEnergy Physics, CAS); Prof. WANG, Jianchun (Institute of High Energy Physics, CAS); Ms ZHANG,
Jinxian (Institute of High Energy Physics, CAS); Dr YU, Liwen (Institute of High Energy Physics,CAS); TITOV, Maksym (Université Paris-Saclay (FR)); Dr DENG, Zhi (Tsinghua University)
共著者: Dr SHE, Xin (Institute of High Energy Physics, CAS); Dr CHANG, Yue (Institute of HighEnergy Physics, CAS)
発表者: Dr QI, Huirong (Institute of High Energy Physics, CAS)
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 5

Probing non-perturbative QED a ⋯タイプ: Oral presentation (in person)

Probing non-perturbative QED and new physics inlaser-particle beam collisions at LUXE and prospects
for a future Higgs factory
2024 年 7 月 10 日水曜日 14:00 (30 分)
The proposed LUXE experiment (Laser Und XFEL Experiment) at DESY, Hamburg, using the 16.5
GeV electron beam extracted from the European XFEL, aims to study collisions between highintensity laser pulses and high-energy electron or secondary photon beams (unique feature at
LUXE). This will elucidate quantum electrodynamics (QED) at the strong-field frontier, where theelectromagnetic field of the laser in the probe particle rest frame is above the Schwinger limit.
In this regime, QED is non-perturbative. This manifests itself in the creation of physical electronpositron pairs from the QED vacuum, similar to Hawking radiation from black holes. LUXE intends
to measure the positron production rate in an unprecedented laser intensity regime. The strongfield QED effects probed by LUXE are expected to become relevant for beam-beam interactions at
future electron-positron colliders. The LUXE setup also provides a unique opportunity to probe
physics beyond the standard model by impinging the large photon flux from Compton scattering
onto a beam dump, thereby probing axion-like-particles (ALPs) at a reach comparable to FASER2and NA62. Furthermore, the extracted 16.5 GeV EuXFEL electron beam for LUXE can be used forstudies of plasma boosting for plasma-enhanced future electron-positron collider concepts, such
as HALHF.
In this contribution we will give an overview of the LUXE experimental setup and its challenges,
as well as its implications for future electron-positron colliders. Finally, we discuss the prospectsof a high-energy extracted electron beam facility for future collider developments and explore thepotential of a LUXE-type experiment at a future Higgs factory.

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主著者: JACOBS, Ruth Magdalena (Deutsches Elektronen-Synchrotron (DE))
発表者: JACOBS, Ruth Magdalena (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Applications
トラック種別: Accelerator: Applications

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 22

Opening remarks
タイプ: Oral presentation (in person)

Opening remarks
2024 年 7 月 8 日月曜日 9:00 (10 分)

発表者: ASAI, Shoji (University of Tokyo (JP))
セッション分類: Plenary

October 3, 2024

ページ 6 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 23

Physics case for Higgs and Electr ⋯タイプ: Oral presentation (in person)

Physics case for Higgs and Electroweak precision
2024 年 7 月 8 日月曜日 9:10 (20 分)

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発表者: DE BLAS MATEO, Jorge (Universidad de Granada (ES))
セッション分類: Plenary

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 24

ILC status
タイプ: Oral presentation (in person)

ILC status
2024 年 7 月 8 日月曜日 9:30 (12 分)

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発表者: NAKADA, Tatsuya (EPFL - Ecole Polytechnique Federale Lausanne (CH))
セッション分類: Plenary

October 3, 2024

ページ 8 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 25

CLIC status
タイプ: Oral presentation (in person)

CLIC status
2024 年 7 月 8 日月曜日 9:42 (12 分)

発表者: STAPNES, Steinar (CERN)
セッション分類: Plenary

October 3, 2024

ページ 9 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 26

Status of the C3 R&D
タイプ: Oral presentation (in person)

Status of the C3 R&D
2024 年 7 月 8 日月曜日 9:54 (12 分)

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発表者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US))
セッション分類: Plenary

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 27

Physics case for e+e- at 500 GeV ⋯タイプ: Oral presentation (in person)

Physics case for e+e- at 500 GeV and above
2024 年 7 月 8 日月曜日 10:06 (20 分)

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発表者: WEIGLEIN, Georg Ralf (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Plenary

October 3, 2024

ページ 11 をご覧ください。

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投稿 ID: 28

HALHF status
タイプ: Oral presentation (in person)

HALHF status
2024 年 7 月 8 日月曜日 11:00 (12 分)

発表者: FOSTER, Brian (University of Oxford (GB))
セッション分類: Plenary

October 3, 2024

ページ 12 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 29

XCC status
タイプ: Oral presentation (in person)

XCC status
2024 年 7 月 8 日月曜日 11:12 (12 分)

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発表者: BARKLOW, Tim (SLAC National Accelerator Laboratory (US))
セッション分類: Plenary

October 3, 2024

ページ 13 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 30

CEPC status
タイプ: Oral presentation (in person)

CEPC status
2024 年 7 月 8 日月曜日 11:36 (12 分)

発表者: GAO, Jie (IHEP)
セッション分類: Plenary

October 3, 2024

ページ 14 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 31

FCCee status
タイプ: Oral presentation (in person)

FCCee status
2024 年 7 月 8 日月曜日 11:48 (12 分)

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発表者: ZIMMERMANN, Frank (CERN)
セッション分類: Plenary

October 3, 2024

ページ 15 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 32

Muon collider status (remote talk)
タイプ: Oral presentation (in person)

Muon collider status (remote talk)2024 年 7 月 8 日月曜日 12:00 (12 分)

発表者: SCHULTE, Daniel (CERN)
セッション分類: Plenary

October 3, 2024

ページ 16 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 33

Higgs Factory detector R&D
タイプ: Oral presentation (in person)

Higgs Factory detector R&D
2024 年 7 月 8 日月曜日 12:12 (20 分)

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発表者: RAJAGOPALAN, Srini (Brookhaven National Laboratory (US))
セッション分類: Plenary

October 3, 2024

ページ 17 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 34

ITN: accelerator developments
タイプ: Oral presentation (in person)

ITN: accelerator developments
2024 年 7 月 8 日月曜日 14:00 (15 分)

発表者: MICHIZONO, Shinichiro (KEK)セッション分類: Accelerator Plenary

October 3, 2024

ページ 18 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 35

CLIC: accelerator developments
タイプ: Oral presentation (in person)

CLIC: accelerator developments
2024 年 7 月 8 日月曜日 14:15 (15 分)

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発表者: BURROWS, Philip
セッション分類: Accelerator Plenary

October 3, 2024

ページ 19 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 36

C3: accelerator developments
タイプ: Oral presentation (in person)

C3: accelerator developments
2024 年 7 月 8 日月曜日 14:30 (15 分)

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発表者: DHAR, Ankur (SLAC National Accelerator Lab)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 20 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 37

CEPC: accelerator developments
タイプ: Oral presentation (in person)

CEPC: accelerator developments
2024 年 7 月 8 日月曜日 14:45 (15 分)

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発表者: LI, yuhui
セッション分類: Accelerator Plenary

October 3, 2024

ページ 21 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 38

FCCee: accelerator developments
タイプ: Oral presentation (in person)

FCCee: accelerator developments
2024 年 7 月 8 日月曜日 15:00 (15 分)

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発表者: ZIMMERMANN, Frank (CERN)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 22 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 39

ECFA Higgs-EW-top factory study
タイプ: Oral presentation (in person)

ECFA Higgs-EW-top factory study
2024 年 7 月 8 日月曜日 14:00 (15 分)

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発表者: ROBSON, Aidan (University of Glasgow (GB))
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 23 をご覧ください。

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投稿 ID: 40

Challenges for MC generators
タイプ: Oral presentation (in person)

Challenges for MC generators
2024 年 7 月 8 日月曜日 14:30 (15 分)

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発表者: REUTER, Jürgen (DESY Hamburg, Germany)
セッション分類: Physics & Detector plenary

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 41

Opportunities and Experimental ⋯タイプ: Oral presentation (in person)

Opportunities and Experimental Challenges at the
Higgs-Top interface
2024 年 7 月 8 日月曜日 14:45 (15 分)

発表者: TIAN, Junping (University of Tokyo)
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 25 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 42

Beyond collider experiments at a ⋯タイプ: Oral presentation (in person)

Beyond collider experiments at a Linear Collider
2024 年 7 月 8 日月曜日 14:15 (15 分)

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発表者: SAKAKI, Yasuhito (KEK)セッション分類: Physics & Detector plenary

October 3, 2024

ページ 26 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 43

Highlights from LHC detector up ⋯タイプ: Oral presentation (in person)

Highlights from LHC detector upgrades
2024 年 7 月 8 日月曜日 15:00 (15 分)

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発表者: BROOIJMANS, Gustaaf (Columbia University); BROOIJMANS, Gustaaf (Columbia University(US))

セッション分類: Physics & Detector plenary

October 3, 2024

ページ 27 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 44

Highlights from detectors for EIC
タイプ: Oral presentation (in person)

Highlights from detectors for EIC
2024 年 7 月 8 日月曜日 15:15 (15 分)

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発表者: GUNJI, Taku (University of Tokyo (JP))
セッション分類: Physics & Detector plenary

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 45

Communication
タイプ: Oral presentation (in person)

Communication
2024 年 7 月 11 日木曜日 14:00 (15 分)

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発表者: TAKAHASHI, Rika (KEK)セッション分類: Plenary

October 3, 2024

ページ 29 をご覧ください。

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投稿 ID: 46

European Strategy (remote talk)
タイプ: Oral presentation (remote)

European Strategy (remote talk)2024 年 7 月 11 日木曜日 14:45 (15 分)

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発表者: JAKOBS, Karl (Albert Ludwigs Universitaet Freiburg (DE))
セッション分類: Plenary

October 3, 2024

ページ 30 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 47

Perspectives from the US for a Hi ⋯タイプ: Oral presentation (in person)

Perspectives from the US for a Higgs Factory
2024 年 7 月 11 日木曜日 14:30 (15 分)

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発表者: PATWA, Abid (U.S. Department of Energy)
セッション分類: Plenary

October 3, 2024

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投稿 ID: 48

Strategy in Japan
タイプ: Oral presentation (in person)

Strategy in Japan
2024 年 7 月 11 日木曜日 14:15 (15 分)

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発表者: NAKAYA, Tsuyoshi (Kyoyo U.)
セッション分類: Plenary

October 3, 2024

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投稿 ID: 49

Global Strategy - ICFA view (rem ⋯タイプ: Oral presentation (remote)

Global Strategy - ICFA view (remote talk)2024 年 7 月 11 日木曜日 15:00 (15 分)

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発表者: CAMPANA, Pierluigi (INFN e Laboratori Nazionali di Frascati (IT))
セッション分類: Plenary

October 3, 2024

ページ 33 をご覧ください。

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投稿 ID: 50

New Technologies for Higgs Fact ⋯タイプ: Oral presentation (in person)

New Technologies for Higgs Factory Detectors
2024 年 7 月 11 日木曜日 16:00 (25 分)

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発表者: DEMARTEAU, Marcel (Oak Ridge National Laboratory)
セッション分類: Plenary

October 3, 2024

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投稿 ID: 51

Physics Vision
タイプ: Oral presentation (in person)

Physics Vision
2024 年 7 月 11 日木曜日 16:25 (25 分)

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発表者: MURAYAMA, Hitoshi (University of California Berkeley (US))
セッション分類: Plenary

October 3, 2024

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投稿 ID: 52

Vision for a Linear Collider Facility
タイプ: Oral presentation (in person)

Vision for a Linear Collider Facility
2024 年 7 月 11 日木曜日 16:50 (25 分)

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発表者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); STAPNES, Steinar (CERN)
セッション分類: Plenary

October 3, 2024

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投稿 ID: 53

Poster awards
タイプ: Oral presentation (in person)

Poster awards
2024 年 7 月 11 日木曜日 15:15 (10 分)

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セッション分類: Plenary

October 3, 2024

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投稿 ID: 54

Closing
タイプ: Oral presentation (in person)

Closing2024 年 7 月 11 日木曜日 17:30 (5 分)

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セッション分類: Plenary

October 3, 2024

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投稿 ID: 55

Energy recovery at a Linear Collider
タイプ: Oral presentation (in person)

Energy recovery at a Linear Collider
2024 年 7 月 8 日月曜日 11:24 (12 分)

発表者: LITVINENKO, Vladimir
セッション分類: Plenary

October 3, 2024

ページ 39 をご覧ください。

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投稿 ID: 57

Test-beam measurements of instr ⋯タイプ: Oral presentation (in person)

Test-beam measurements of instrumented sensor
planes for a higly compact and granularelectromagnetic calorimeter
2024 年 7 月 10 日水曜日 9:30 (30 分)
The LUXE experiment is designed to explore the strong-field QED regime in interactions of highenergy electrons from the European XFEL in a powerful laser field. One of the crucial aims of thisexperiment is to measure the production of electron-positron pairs as a function of the laser fieldstrength where non-perturbative effects are expected to kick in above the Schwinger limit.
For the measurements of positron energy and multiplicity spectra, a tracker and an electromagnetic calorimeter are foreseen. Since the expected number of positrons varies over five-orders ofmagnitude, and has to be measured over a widely spread low energy background, the calorimetermust be compact and finely segmented. The concept of a sandwich calorimeter made of tungsten
absorber plates interspersed with thin sensor planes is developed. The sensor planes comprise a silicon pad sensor, flexible Kapton printed circuit planes for bias voltage supply and signal transport
to the sensor edge, all embedded in a carbon fibre support. The thickness of a sensor plane is lessthan 1 mm. A dedicated readout is developed comprising front-end ASICs in 130 nm technology
and FPGAs to orchstrate the ASICs and perform data pre-processing. As an alternative, GaAs are
considered with integrated readout strips on the sensor. Prototypes of both sensor planes are studied in an electron beam of 5 GeV. Results will be presented on the homogeneity of the response,edge effects and cross talk between channels.

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主著者: BENHAMMOU, Yan (Tel Aviv University (IL))
発表者: BENHAMMOU, Yan (Tel Aviv University (IL))
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

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投稿 ID: 58

Beam loading simulations of the ⋯タイプ: Oral presentation (in person)

Beam loading simulations of the CLIC positron
Source2024 年 7 月 10 日水曜日 10:00 (20 分)
The presentation will report on recent CLIC positron source activities.
The focus will be on flux concentrator developments and beam loading calculations of the capture
LINAC.

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主著者: MESBAH, Nafiseh (IPM); DOEBERT, Steffen (CERN)
発表者: MESBAH, Nafiseh (IPM)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

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投稿 ID: 59

Probing GHU models at the ILC w ⋯タイプ: Oral presentation (in person)

Probing GHU models at the ILC with di-quark AFB
at c.m.e. above the Z mass
2024 年 7 月 10 日水曜日 16:10 (20 分)
We discuss the experimental prospects for measuring differential observables in b-quark and cquark pair production at the International Linear Collider (ILC) baseline energies, 250 and 500 GeV.
The study is based on full simulation and reconstruction of the International Large Detector (ILD)
concept. Two gauge-Higgs unification models predicting new high-mass resonances beyond theStandard Model are discussed. These models predict sizable deviations of the forward-backward
observables at the ILC running above the mass and with longitudinally polarized electron andpositron beams. The capability of the ILC to probe these models via high-precision measurementsof the forward-backward asymmetry is discussed.
Alternative scenarios at other energies and beam polarization schemes are also discussed, extrapolating the estimated uncertainties from the two baseline scenarios.

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主著者: IRLES, Adrian (IFIC (CSIC/UV) Valencia); SAIBEL, Andrej (Univ. of Valencia and CSIC(ES)); RICHARD, Francois; Prof. YAMAMOTO, Hitoshi; MÁRQUEZ HERNÁNDEZ, Jesús P. (IFIC(CSIC/UV)); YAMATSU, Naoki; POESCHL, Roman (Université Paris-Saclay (FR))
発表者: IRLES, Adrian (IFIC (CSIC/UV) Valencia)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 42 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 60

Design and optimization of the Fi ⋯タイプ: Oral presentation (remote)

Design and optimization of the Final Focus System
for 7 TeV Compact Linear Collider
2024 年 7 月 10 日水曜日 14:40 (20 分)
The Compact Linear Collider (CLIC) proposes a linear accelerator system aimed at colliding electrons and positrons at energies up to 3 TeV. To explore novel physics and enhance competitivenesswith other collider projects, CLIC is considering increasing the center-of-mass energy to 7 TeV.
A crucial component of the CLIC infrastructure is the Beam Delivery System (BDS), responsible
for transporting lepton beams from the Main Linac exit to the Interaction Point (IP). This paper
presents an overview of the studies and challenges associated with the design of the new Final Focus System (FFS), such as implementing chromaticity correction to mitigate synchrotron radiation
effects, and ensuring precise transverse aberration control at the IP.

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主著者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES))
共著者: Mr PASTUSHENKO, Andrii (CERN); TOMAS GARCIA, Rogelio (CERN)
発表者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES))
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 43 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 61

Higher-order initial state radiatio ⋯タイプ: Oral presentation (in person)

Higher-order initial state radiation in e+eannihilation
2024 年 7 月 10 日水曜日 9:50 (20 分)
Radiative corrections due to initial state radiation in electron-positronannihilation are calculated within the QED structure function approach. NLO QED parton distribution functions are derived analytically. Results are shown in the next-to-leading logarithmic
approximation up to O(α4 L3 ) order, where L = ln(s/m2e ) is the large logarithm. Several mistakes in previous calculations are corrected. The results are relevant for future high-precisionexperiments at e+ e− colliders.

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主著者: ARBUZOV, Andrej (Joint Institute for Nuclear Research)
共著者: Mrs VOZNAYA, Uliana (Joint Institute for Nuclear Research)
発表者: ARBUZOV, Andrej (Joint Institute for Nuclear Research)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 44 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 62

A BSM world with doubly charged ⋯タイプ: Oral presentation (remote)

A BSM world with doubly charged scalars.
Consequences for e+e- projects.
2024 年 7 月 10 日水曜日 14:40 (20 分)
In the recent years a large set of indications for BSM scalars has been observed in LHC data.
After a brief description of the most significant indications, this presentation intends to give a
consistent interpretation in terms of a generalised Georgi Machacek model which predicts a doubly
charged scalar indicated by ATLAS data. Consequences for currently planned e+e- colliders will
be sketched. An updated description of this work can be found in Arxiv 2308.12180.

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主 著 者:Dr RICHARD, Francois (IJCLAB); RICHARD, Francois (LAL Orsay); RICHARD, Fran-cois

発表者: Dr RICHARD, Francois (IJCLAB)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 45 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 63

Study status of Beam Backgroun ⋯タイプ: Oral presentation (in person)

Study status of Beam Backgrounds and MDI Design
at the CEPC
2024 年 7 月 10 日水曜日 16:35 (15 分)
The machine-detector interface (MDI) issues are one of the most complicate and challenging topics at the Circular Electron Positron Collider (CEPC). Comprehensive understandings of the MDI
issues are decisive for achieving the optimal overall performance of the accelerator and detector.
The machine will operate at different beam energies, therefore, a flexible interaction region design will be plausible to allow for the large beam energy range. The design has to provide highluminosity that is desirable for physics studies, but keep the radiation backgrounds tolerable tothe detectors. This requires careful balance of the requirements from the accelerator and detector
sides.
In this talk, the latest design of the CEPC MDI based on CEPC Technical Design Report (TDR) will
be presented, covering the design of the beam pipe and whole IR, the estimation of beam induced
backgrounds, the mitigating schemes, and also our plan towards the Ref-TDR of CEPC detectorand EDR of accelerator.

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主著者: Dr WANG, Haijing (IHEP); SHI, Haoyu (Institute of High Energy Physics, Chinese Academyof Sciences); ZHU, Hongbo (Chinese Academy of Sciences (CN)); Mr JI, Quan (IHEP); BAI, Sha(IHEP); Dr XU, Wei (IHEP); Mr LIU, Yudong (IHEP); HOU, suen (Res. Fellow)
発表者: SHI, Haoyu (Institute of High Energy Physics, Chinese Academy of Sciences)
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 46 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 64

Investigating hidden sectors at fu ⋯タイプ: Oral presentation (in person)

Investigating hidden sectors at future e+e- colliders
through two-particle angular correlations
2024 年 7 月 9 日火曜日 14:00 (20 分)
Exploring long-range angular correlations among emitted particles in high-energy collisions provides an opportunity to uncover physics beyond the Standard Model like Hidden Valley (HV) models.
We focus on a hidden QCD-like sector, where the interplay between HV matter and QCD partonic
cascades could enhance azimuthal correlations between final-state particles. Our investigation,
performed at detector level, specifically targets the detectability of these phenomena at future e+ecolliders, yielding a cleaner experimental signature as compared to the Large Hadron Collider(LHC). Remarkably, the observation of ridge structures in the two-particle correlation function
may suggest the existence of New physics.

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主著者: IRLES, Adrian (IFIC (CSIC/UV) Valencia); SARKISYAN-GRINBAUM, Edward (CERN and
Texas U., Arlington); MUSUMECI, Emanuela (Univ. of Valencia and CSIC (ES)); CORREDOIRA, Imanol(Universidade de Santiago de Compostela (ES)); SANCHIS-LOZANO, Miguel-Angel (IFIC-University of
Valencia); Dr PÉREZ-RAMOS, Redamy (IPSA/LPTHE); MITSOU, Vasiliki (Univ. of Valencia and CSIC
(ES))
発表者: MUSUMECI, Emanuela (Univ. of Valencia and CSIC (ES))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 47 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 65

Stau searches at future e+e- colliders
タイプ: Oral presentation (in person)

Stau searches at future e+e- colliders
2024 年 7 月 9 日火曜日 10:05 (20 分)
The future e+e- colliders offer excellent facilities for SUSY searches. The stau, superpartner of thetau-lepton, is one of the most interesting particles for these searches, being likely the lightest of
the sfermions, first one that could be observed, and it can be regarded as the worst and thus mostgeneral scenario for the searches.
The prospects for discovering stau-pair production at future e+e- factories and the resulting detector requirements will be discussed. The study takes the ILD detector concept and ILC parametersat 500 GeV as example. It includes all SM as well as beam induced backgrounds. It shows that withthe chosen accelerator and detector conditions, SUSY will be discovered if the NLSP mass is up tojust a few GeV below the kinematic limit of the collider.
Expectations for another accelerator and detectors conditions are derived. In particular the role ofthe hermeticity of the detector and of the ability to operate trigger-less will be discussed.

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主著者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); NUNEZ PARDO DE VERA, Maria
Teresa; BERGGREN, Mikael (Deutsches Elektronen-Synchrotron (DE))
発表者: BERGGREN, Mikael (Deutsches Elektronen-Synchrotron (DE))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 48 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 67

Searching for Charged Higgs Bos ⋯タイプ: Oral presentation (in person)

Searching for Charged Higgs Bosons via
e+e− → H +H − → cb̄c̄b at Linear Colliders
2024 年 7 月 10 日水曜日 11:00 (20 分)
We study a search for the charged Higgs boson via e+ e− → H + H − → cb̄c̄b at the 500 GeV ILC.
In a general two Higgs doublet model without Z2 symmetry, extra Yukawa couplings ρtc and ρtt
can drive electroweak baryogenesis, but searches at the HL-LHC may still go empty-handed if thecouplings are relatively weak. Taking mH + ≃ mH ≃ mA ≃ 200 GeV, with ρtc , ρtt ∼ 0.1 andno h(125)-H mixing, H + → cb̄ decay is dominant, and the cb̄c̄b final state is likely overwhelmed
by QCD background at the LHC. We show that the electroweak production of H + H − at the ILC
can be discovered with integrated luminosity of 1 ab−1 . Furthermore, we show that mH + can beextracted by requiring the two pairs of b and light jets be roughly equal in mass, without assuming
the mass value. Thus, ILC can probe low mass Higgs bosons in multijet final states to complement
HL-LHC in the future.

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主著者: HOU, George W.-S. (National Taiwan University)
発表者: HOU, George W.-S. (National Taiwan University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 49 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 68

X-LAB: A VERY HIGH- ⋯タイプ: Oral presentation (in person)

X-LAB: A VERY HIGH-CAPACITY X-BAND RF TESTSTAND FACILITY AT THE UNIVERSITY OF
MELBOURNE
2024 年 7 月 9 日火曜日 11:00 (20 分)
The first Southern Hemisphere X-band Laboratory for Accelerators and Beams (X-LAB) has beencommissioned at the University of Melbourne. One of the key projects within this laboratory involves repurposing half of the CERN X-band test stand XBOX3, now known as Mel-BOX.
This initiative aims to validate the performance of high-gradient travelling wave accelerating structures, crucial for the Compact Linear Collider (CLIC) beam-based acceleration baseline, operating
at a frequency of 12 GHz.
To assess the structures’ performance under high peak power and short pulse width RF conditions,
two klystron-based test facilities have been operationalised for this year. Similar to XBOX3, MelBOX adopts an innovative approach to combine high average power klystron units, facilitating
power distribution to two testing slots with a repetition rate of up to 400 Hz. Additionally, theparameters such as repetition rate, peak power, pulse length, and pulse shape can be tailored tomeet specific testing requirements. This novel method of generating high-power, high-repetition
RF pulses holds promise for various applications necessitating multiple test slots.
Moreover, there are plans to leverage this technology as a foundation for developing compact accelerators tailored for medical or university applications, including radiotherapy and compact lightsources.

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主著者: VOLPI, Matteo (University of Melbourne (AU))
発表者: VOLPI, Matteo (University of Melbourne (AU))
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 50 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 69

Prospects for constraining light- ⋯タイプ: Oral presentation (in person)

Prospects for constraining light-quark electroweak
couplings at Higgs factories
2024 年 7 月 9 日火曜日 14:20 (20 分)
Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes
to New Physics. Accurate studies of the Z-boson couplings to the first-generation quarks could reveal potential discrepancies between the fundamental theory and experimental data. Future e+ecolliders running at the Z pole and around the ZH threshold would be an excellent tool to perform such a measurement, unlike the LHC where hadronic Z decays are only available in boosted
topologies. The measurement is based on comparison of radiative and non-radiative hadronic decays. Due to the difference in quark charge, the relative contribution of the events with final-stateradiation (FSR) directly reflects the ratio of decays involving up- and down-type quarks. Suchan analysis requires proper modeling and statistical discrimination between photons coming fromdifferent sources, including initial-state radiation (ISR), FSR, parton showers and hadronisation. In
our contribution, we show how to extract the values of the Z couplings to light quarks and present
the estimated uncertainties of the measurement.

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主著者: ZARNECKI, Aleksander Filip (University of Warsaw); JEANS, Daniel; TIAN, Junping (University of Tokyo); REUTER, Jürgen (DESY Hamburg, Germany); MEKALA, Krzysztof
発表者: MEKALA, Krzysztof
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 51 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 70

A next generation, integrated co ⋯タイプ: Oral presentation (in person)

A next generation, integrated community toolset forthe modeling of linear colliders
2024 年 7 月 10 日水曜日 11:00 (20 分)
The design of the next generation of linear colliders demands a renewed, high-performance, integrated set of simulation codes. We present the Beam, pLasma & Accelerator Simulation Toolkit(BLAST), which includes legacy accelerator codes such as Impact-T, Impact-Z, Warp and Posinst,
as well as a renewed generation of accelerator codes such as ImpactX, WarpX and HiPACE++.
The new codes, born out of the US DOE Exascale Computing Project (ECP), all share a common
foundation based on the AMReX library that gives native support for mesh refinement and highperformance on both CPU-based and GPU-based computer architectures. The integrated set also
includes python-driven workflows for efficient parametric optimization and coupling with machine learning frameworks. We will present the latest of the toolkit and new codes, with examples
and discussion on their applications to start-to-end modeling of linear colliders from the source tothe interaction point beam-beam effects, whether using conventional radiofrequency or plasmabased acceleration technologies, or a combination.

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主著者: VAY, Jean-Luc (Lawrence Berkeley National Laboratory)
FORMENTI, Arianna (Lawrence Berkeley National Laboratory); HUEBL, Axel (Lawrence
Berkeley National Laboratory); MITCHELL, Chad (Lawrence Berkeley National Laboratory); ZONI,
Edoardo (Lawrence Berkeley National Laboratory); QIANG, Ji (Lawrence Berkeley National Laboratory); SHAPOVAL, Olga (Lawrence Berkeley National Laboratory); LEHE, Remi (Lawrence Berkeley
National Laboratory); SANDBERG, Ryan (Lawrence Berkeley National Laboratory); GARTEN, marco(Lawrence Berkeley National Laboratory)

共著者:

発表者: VAY, Jean-Luc (Lawrence Berkeley National Laboratory)
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 52 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 71

Status of FCC civil engineering a ⋯タイプ: Oral presentation (remote)

Status of FCC civil engineering and site
investigations
2024 年 7 月 10 日水曜日 16:15 (20 分)
Following the mid-term review in 2023, the Future Circular Collider (FCC) feasibility study at
CERN continues towards the European Strategy for Particle Physics 2025. This talk will cover themain updates, current progress of the civil engineering design and the status of the geotechnicalsite investigations.

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主著者: BROMILEY, Liam (CERN)
発表者: BROMILEY, Liam (CERN)
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 53 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 73

Probing SMEFT operators using p ⋯タイプ: Oral presentation (in person)

Probing SMEFT operators using polarizations andspin correlations at current and future colliders
2024 年 7 月 10 日水曜日 17:15 (15 分)
The standard Model (SM) is the best currently experimentally tested theory of fundamental particles and their interactions. The discovery of Higgs boson completes the particle spectrum of SM
and now the particle physics have officially entered the era of precision measurement. While the
SM enjoys robust experimental verification, it falls short in explaining phenomena like the naturalness problem, dark matter, strong CP problem, matter-antimatter asymmetry, and neutrino mass.
Various beyond SM models, including supersymmetry, Technicolor, UED, and string theory, havebeen proposed to address these issues, yet experimental evidence for new particles, symmetries,
or dimensions remains elusive.
In response to the null results from the experiments, a shift toward a model-independent formalism
becomes imperative. The effective field theory (EFT) serves as a versatile framework, expanding
the SM by introducing higher-order gauge symmetric Lorentz terms. While the gauge symmetry
imposes constraints on deviations in the fermionic sector, the likelihood of significant deviationsin this sector is notably reduced. However, the electroweak sector remains open to exploration.
We study the potential of future electron-positron colliders, particularly the International Linear
Collider (ILC), to probe higher-order operators affecting the electroweak gauge sector. The study
is carried with polarized beams which aid on increasing the signal-to-background ratio.\
To maximize sensitivity to new physics signals, a diverse set of observables is crucial. Here, wedelve into the significance of spin-related observables, offering numerous polarization and spincorrelation options. These set of observables could also shed light on the CP structure and correlations of new physics. One has to note that the construction of vector polarization and theircorrelations with the tensorial polarizations demands the proper identification of final daughterof weak bosons. The tagging of daughters becomes non-trivial in case of light flavor jets and to
overcome these challenges, we propose employing machine learning techniques such as artificial
neural networks, boosted decision trees, and convolutional neural networks. We show for the
hadronic decay of W boson an accuracy of 80% can be achieved. The 95% CL bounds on anomalous couplings is found to be tighter than the experimental values. Finally we note that besides
playing a dominant role on probing higher order operators, spin-related observables can be directly
used to comment on the existence of quantum entanglement at high energy.

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主著者: SUBBA, Amir (Indian Institute of Science Education and Research, Kolkata)
発表者: SUBBA, Amir (Indian Institute of Science Education and Research, Kolkata)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 54 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 74

Next-generation interaction point ⋯タイプ: Oral presentation (in person)

Next-generation interaction point simulations forlinear lepton colliders
2024 年 7 月 10 日水曜日 11:20 (15 分)
The International Linear Collider (ILC) is among the most mature designs for a next-generation linear electron-positron collider. Plasma-based accelerators have also been proposed to reach the 10
TeV COM level further in the future. A key challenge in these types of machines is preserving theluminosity at the target value, mitigating the potentially detrimental effects of disruption, beamstrahlung, and background generation. This is why in-depth beam crossing studies are required
to provide a comprehensive description of the physics at the interaction point. We present the exascale open-source code WarpX as a next-generation tool for beam-beam investigations. WarpX
guarantees strong performance, portability (different operative systems, multi-CPU/GPU), flexibility (many options, algorithms, diagnostics, etc.), with up-to-date documentation and consistentmaintenance within a large, active and multi-disciplinary community. We present benchmarks
against established codes like GUINEA-PIG and CAIN, and show first results of simulation campaigns for the ILC, Cˆ3, HALHF, and plasma-based colliders.

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主著者: FORMENTI, Arianna (Lawrence Berkeley National Laboratory)
共著者: HUEBL, Axel (Lawrence Berkeley National Laboratory); Mr NGUYEN, Bao (SLAC); SCHROEDER,
Carl; VAY, Jean-Luc (Lawrence Berkeley National Laboratory); Dr FEDELI, Luca (LIDYL CEA-Université Paris-Saclay); LEHE, Remi (Lawrence Berkeley National Laboratory); GESSNER, Spencer (SLAC)
発表者: FORMENTI, Arianna (Lawrence Berkeley National Laboratory)
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 55 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 75

Cavity tuner development for the ⋯タイプ: Oral presentation (in person)

Cavity tuner development for the ITN cryomodule at
KEK
2024 年 7 月 9 日火曜日 11:00 (20 分)
In this contribution we report on the development of a cavity tuner for a cryomodule, which is
being developed and will be built and tested in the scope of the International Linear Collider (ILC)
Technology Network (ITN) at KEK until 2027. We have simulated Lorentz-force detuning of theaccording SRF 1.3 GHz 9-cell TESLA-type cavities to understand the tuner requirements better. Asa base of the ITN cavity tuner design the LCLS-II double-lever tuner was selected. In a collaboration
with Fermilab we have tested the LCLS-II tuner on an LCLS-II cavity at room temperature andatmospheric pressure. Based on the gained experience, design adjustments are being considered.
Slow and fast tuner driving electronics were partially selected.

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主著者: Dr OMET, Mathieu (High Energy Accelerator Research Organization (KEK))
共著者: YAMAMOTO, Akira; Dr KUMAR, Ashish (KEK); Mr CONTRERAS-MARTINEZ, Crispin(FNAL); UMEMORI, Kensei (KEK); DOHMAE, Takeshi; YAMAMOTO, Yasuchika (KEK); PISCHALNIKOV, Yuriy (FNAL)
発表者: Dr OMET, Mathieu (High Energy Accelerator Research Organization (KEK))
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 56 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 76

Status of BSM searches at ATLAS ⋯タイプ: Oral presentation (in person)

Status of BSM searches at ATLAS including somefuture prospects at HL-LHC
2024 年 7 月 9 日火曜日 9:00 (25 分)
Despite successfully predicting the outcome of hundreds of measurements at colliders and otherexperiments, the standard model of particle physics cannot be the final theory of nature. Searches
for beyond-the-standard model (BSM) physics are now a major component of the research programat the ATLAS and CMS experiments at the Large Hadron Collider (LHC). This talk presents highlights of BSM searches at the LHC, including dark matter, long-lived particles, heavy resonances,
leptoquarks, supersymmetric particles, BSM decays of SM particles, and other exotic phenomena.
Experimental methodologies, sophisticated analysis tools including machine learning, experimental results, and phenomenological interpretations including Effective Field Theories are presented.

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主著者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US))
発表者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 57 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 77

Top quark flavor changing neutral ⋯タイプ: Oral presentation (remote)Top quark flavor changing neutral currents at future
linear colliders
2024 年 7 月 9 日火曜日 11:40 (20 分)
In this talk, I will discuss the potential discovery of top quark flavor changing neutral current(FCNC) at future linear colliders (LCs). First, I will discuss the theoretical predictions in a class of
simplified dark matter models where the rates of top quark FCNC decays are generated by darksector particles. I will then discuss the sensitivity of the LCs on the top quark FCNC for somechannels and some benchmark center-of-mass energies.

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主著者:

JUEID, Adil (Institute for Basic Science); Prof. KANEMURA, Shinya (Osaka University)

発表者: JUEID, Adil (Institute for Basic Science)
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 58 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 78

Searches for BSM physics at a ⋯タイプ: Oral presentation (in person)

Searches for BSM physics at a gamma-gamma
collider with Energy < 12 GeV based on European
XFEL
2024 年 7 月 9 日火曜日 14:20 (20 分)
The possibility of a Gamma-Gamma collider extension to the Beamdump of the 17.5 GeV European XFEL has been discussed before asa first high energy collider of its sort. It would not just be to study
the concept of a gamma-gamma collider but this collider would also
be without competition in the region of 5−12 GeV for gamma-gamma
physics. In this range bb̄ and cc̄ resonances, tetraquarks as well as mesonic molecules can beobserved. Furthermore some BSM processes can also be reached in this range. In this talk wewant to discuss the possibility of observing ALPs at this collider as well as an extension to a mixed
model of ALPs and dark photon (dark axion portal), that introduces the new couplings not as a
product of the individual couplings and therefore offers a rich phenomenology.

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主著者: BERGER, Marten (University of Hamburg)
共著者: Prof. MOORTGAT-PICK, Gudrid (University of Hamburg); Ms WÜST, Monika (Universityof Hamburg)

発表者: BERGER, Marten (University of Hamburg)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 59 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 79

Luminosity Studies for the Cool C ⋯タイプ: Oral presentation (in person)

Luminosity Studies for the Cool Copper Collider
2024 年 7 月 10 日水曜日 9:20 (20 分)
Achieving high instantaneous luminosity while managing the beam-induced background (BIB) is
critical for the successful operation of any future electron-positron (e+ e− ) collider. In this talk,we will present the first extensive luminosity studies for a proposed linear e+ e− collider, the Cool
Copper Collider (C3 ), as discussed in arXiv:2403.07093. We begin with a theoretical overview ofluminosity at e+ e− colliders and its interplay with Beamstrahlung –the leading source of BIB –and
we motivate the importance of simulations for the accurate evaluation of the effect of beam-beaminteractions on the attainable luminosity. Through simulations in Guinea-Pig, we then evaluate
the impact of key beam parameters, such as emittance, bunch length, beta function and waist shift,on the luminosity of C3 , and tune these parameters with the objective of optimizing the luminosity,
without a commensurate increase in the accompanying BIB. We then propose a new beam parameter set for C3 which achieves a ˜40% luminosity increase while maintaining BIB levels at similarlevels. Additional luminosity-enhancing scenarios through modifications in the time-structure of
the beam are presented, and their sustainability implications are discussed. Finally, using a common simulation framework, we perform a comparative analysis of the luminosity and BIB characteristics of C3 with those for ILC and CLIC. Our results indicate that C3 achieves competitive
luminosities with a narrower luminosity spectrum than CLIC and lower background rates than
ILC, placing C3 as an attractive option for realizing a compact, high-performance Higgs factory.
We close our talk by showing how the developed luminosity optimization methodology can be extended to other collider proposals and by presenting preliminary results towards an automatizedluminosity optimization scheme.

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主著者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US)); NANNI, Emilio (SLAC
National Accelerator Laboratory); VERNIERI, Caterina (SLAC National Accelerator Laboratory (US))
発表者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US))
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

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投稿 ID: 80

HNL at e+e- colliders
タイプ: Oral presentation (in person)

HNL at e+e- colliders
2024 年 7 月 10 日水曜日 11:20 (20 分)
Neutrinos can be a key to solving several cosmological problems, such as the mystery of the baryonantibaryon asymmetry in the universe or the origin of dark matter. The existence of their heavier
partners, the so-called heavy neutral leptons (HNL), is a well-motivated scenario which could
also contribute to explaining the mass-generation mechanism for light neutrinos. Future lepton
colliders, including e+e- linear machines, will offer the farthest discovery reach for these particles
and allow for studying their features, probing the lepton-flavour universality and constraining
their Dirac or Majorana nature. In this talk, we will show how to look for HNL with masses
above the Z-pole at future lepton colliders and answer the fundamental questions concerning theirproperties.

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ZARNECKI, Aleksander Filip (University of Warsaw); REUTER, Jürgen (DESY Hamburg,
Germany); MEKALA, Krzysztof

主著者:

発表者: MEKALA, Krzysztof
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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投稿 ID: 81”Here be SUSY” - Prospects for S ⋯タイプ: Oral presentation (in person)”Here be SUSY” - Prospects for SUSY searches atfuture colliders
2024 年 7 月 9 日火曜日 9:25 (20 分)
Some say SUSY is dead, because LHC has not discovered it yet. But is thisreally true? It turns out that the story is more subtle. SUSY can be ‘justaround the corner’, even if no signs of it has been found and a closer
look is needed to quantify the impact of LHC limits and their implications
for future colliders. Here, a scan of the relevant parameter space of(weak-scale) SUSY parameters, is presented.
I concentrate on properties relevant to evaluate the experimental
prospects: mass differences, lifetimes and decay-modes. The observations arethen confronted with estimated experimental capabilities.
I have considered what can be expected from (HL-)LHC, where it
turns that large swaths of SUSY parameter space will be hard to access.
For e+e- colliders, the situation is simple:
at such colliders, SUSY will be either discovered or excluded almost to
the kinematic limit.

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主著者: BERGGREN, Mikael (Deutsches Elektronen-Synchrotron (DE))
発表者: BERGGREN, Mikael (Deutsches Elektronen-Synchrotron (DE))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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投稿 ID: 82

Update on CARIE high gradient p ⋯タイプ: Oral presentation (in person)

Update on CARIE high gradient photocathode test
stand at LANL
2024 年 7 月 10 日水曜日 11:40 (20 分)
This talk will report on the status of commissioning of the Cathodes And Radio-frequency Interactions in Extremes (CARIE) high gradient C-band RF photoinjector test stand at Los Alamos
National Laboratory. We are assembling and testing the high gradient photoinjector capable ofproducing electric fields at the cathodes up to 250 MV/m. The photoinjector will be powered by a
50 MW, 5.712 GHz Canon klystron. The klystron was delivered to LANL in July of 2023, installed,
and commissioned. The waveguide line from the klystron goes through a high-power circulator
into a concrete vault that is rated to provide radiation protection for electron beams with beam
power up to 20 kW. The all-copper photoinjector was fabricated, tuned, and is awaiting high gradient testing. The second version of the photoinjector will be built with replaceable high quantumefficiency cathodes to test behavior of advanced photocathode materials at high gradients. Adding
capability to operate the photoinjector at cryogenic temperatures is considered. The status of the
facility and its high-power operation and plans for photocathode testing will be presented.

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主著者: SIMAKOV, Evgenya (LANL)ALEXANDER, Anna (LANL); RAI, Deepak (LANL); XU, Haoran (LANL); ZUBORAJ,
Muhammed (LANL); ANISIMOV, Petr (LANL); GRUMSTRUP, Torben (LANL); HAYNES, William B.
(LANL)

共著者:

発表者: SIMAKOV, Evgenya (LANL)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

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投稿 ID: 83

X-band activities for the EuPRAX ⋯タイプ: Oral presentation (in person)

X-band activities for the EuPRAXIA@SPARC_LAB
Linac
2024 年 7 月 9 日火曜日 11:20 (20 分)
Over recent years, significant efforts have been dedicated to validating the reliability and functionality of X-band technology at extremely high peak fields and accelerating gradients to achieve therealization of increasingly compact linacs. The Eupraxia@SPARC_LAB project entails the development of 1GeV Linac utilizing a X-band booster comprising 16 accelerating structures operating at
a nominal gradient of 60MV/m. At the Frascati laboratories of INFN (LNF) in the last year various
X-band RF components essential for the Eupraxia Linac have been developed and have been tested
at nominal peak power conditions. This was made possible thanks to the use of the TEX test facility devoted specifically for the development and testing of RF devices and accelerating structuresin the X-band. Recently, the first RF prototype of X-band accelerating structure designed at LNF
has been manufactured and tested at high power. This report presents the results of the latest tests
conducted at TEX and the preliminary results of the conditioning of the first accelerating structure
prototype for the EuPRAXIA@SPARC_LAB project.

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主著者: CARDELLI, Fabio
共著者: LIEDL, Andrea; BUONOMO, Bruno; DI GIULIO, Claudio; ALESINI, David; DI PASQUALE,
Enrico; DI RADDO, Gianluca (INFN-LNF); LATINI, Giulia; PIERSANTI, Luca (INFN-LNF); DIOMEDE,
Marco; PIOLI, Stefano; LOLLO, Valerio (INFN-LNF)
発表者: CARDELLI, Fabio
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

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投稿 ID: 84

Application of laser-plasma accel ⋯タイプ: Oral presentation (in person)

Application of laser-plasma accelerators to future
linear colliders
2024 年 7 月 10 日水曜日 14:00 (15 分)
Laser-driven plasma accelerators have demonstrated ultra-high accelerating gradients, offering
the potential to reduce the size and cost of a future energy-frontier linear collider. In this presentation, I will discuss the design considerations for the application of laser-driven plasma-based
accelerator technology to a multi-TeV linear collider. Plasma accelerators naturally accelerate
short bunches using large longitudinal and transverse wakefields in plasma, and this presents
unique beam dynamics challenges. I will discuss several of these challenges, including staging
laser-plasma accelerators, scattering with background plasma, and beam transverse stability. Key
to the realization of the collider application is the development of high average and high peak
power laser systems, operating with high efficiency. Coherent combination of fiber lasers is apromising solution to achieve high average and high peak power lasers suitable for high-energy
physics applications, and I will describe recent progress and outline the R&D path toward a collider
based on laser-plasma accelerator technology.

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主著者: SCHROEDER, Carl (LBNL)
共著者: BENEDETTI, Carlo (LBNL); OSTERHOFF, Jens (LBNL); NAKAMURA, Kei (LBNL); ESAREY,
Eric (LBNL)
発表者: SCHROEDER, Carl (LBNL)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

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投稿 ID: 85

Collider Tests of Nanohertz Grav ⋯タイプ: Oral presentation (in person)

Collider Tests of Nanohertz Gravitational Waves
2024 年 7 月 9 日火曜日 11:00 (15 分)
Recently, compelling evidence of nanohertz gravitational waves is indicated by the pulsar timing
array collaborations. In this talk, I will present an MeV-scale first-order phase transition froma minimal dark sector to explain the gravitation waves, with a focus on the collider tests via aminimal Higgs portal. I will demonstrate that to explain the observed gravitational waves, theHiggs portal coupling should be so sizable that it can be probed through Higgs invisible decay
at the LHC and future lepton colliders such as CEPC, ILC, and FCC-ee. It opens up a promisingavenue to uncover the physical origin of the nanohertz GWs via colliders and to hear and see theminimal dark.

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主著者: Dr LI, Shaoping (Osaka U.)
発表者: Dr LI, Shaoping (Osaka U.)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 86

Beamstrahlung backgrounds in I ⋯タイプ: Oral presentation (in person)

Beamstrahlung backgrounds in ILD at linear (ILC)
and circular (FCCee) colliders
2024 年 7 月 10 日水曜日 11:35 (15 分)
I will report on a comparison of beam-strahlung backgrounds at the ILC and FCCee, with an emphasis on the TPC and Vertex detector. The different MDI designs and beam timing structures at
the two colliders have some dramatic effects on detector backgrounds.

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主著者: JEANS, Daniel
発表者: JEANS, Daniel
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

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投稿 ID: 87

Prospects for light exotic scalar m ⋯タイプ: Oral presentation (in person)

Prospects for light exotic scalar measurements at thee+e- Higgs factory.
2024 年 7 月 10 日水曜日 15:00 (20 分)
The physics program of the Higgs factory will focus on measurements of the 125 GeV Higgs boson,with the Higgs-strahlung process being the dominant production channel at 250 GeV. However,production of extra light scalars is still not excluded by the existing experimental data, provided
their coupling to the gauge bosons is sufficiently suppressed. Fermion couplings of such a scalar
could also be very different from the SM predictions leading to non-standard decay paterns. Considered in the presented study is the feasibility of direct light scalar observation at future Higgs
factory experiments assuming different decay channels.

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主著者: ZARNECKI, Aleksander Filip (University of Warsaw)
共著者: BRUDNOWSKI, Bartlomiej (Faculty of Physics, University of Warsaw); ZEMBACZYNSKI,
Kamil (Faculty of Physics, University of Warsaw)

発表者: ZARNECKI, Aleksander Filip (University of Warsaw)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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投稿 ID: 88

Determination of CP-violating H ⋯タイプ: Oral presentation (remote)

Determination of CP-violating Higgs couplings withtransversely-polarized beams at the ILC
2024 年 7 月 9 日火曜日 9:30 (20 分)
We study possible CP-violation effects of the Higgs to Z-boson couplingat a future e+ e− collider, e.g. the International Linear Collider (ILC). We find that the azimuthal
angular distribution of the muon pair, produced by e+ e− → HZ− > Hµ+ µ− , can be sensitive tosuch a CP-violation effect when we apply initial transversely polarized beams. Based on this angular distribution, we construct a CP sensitive asymmetry and obtain this asymmetry by Whizard
simulation. By comparing the SM prediction with 2σ range of this asymmetry, we estimate thelimit of the CP-odd coupling in HZZ interaction, including as well studies from unpolarized andlongitudinally-polarized beams.

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主著者: Dr LI, Cheng (Sun-Yat-Sen University); MOORTGAT-PICK, Gudrid
発表者: Dr LI, Cheng (Sun-Yat-Sen University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 89

Beam-Induced Backgrounds at the ⋯タイプ: Oral presentation (in person)

Beam-Induced Backgrounds at the Cool Copper
Collider2024 年 7 月 10 日水曜日 11:50 (15 分)
Beam-beam interactions constitute an important source of background at any electron-positron(e+ e− ) collider, generating the so-called beam-induced background (BIB), with important implications for the design and optimization of detectors at these machines and, ultimately, their physics
reach. In this talk, we will present the latest results on the evaluation of the BIB at the Cool Copper
Collider (C3 ). We will begin with an overview of the various processes that contribute to the BIB at
an e+ e− machine and evaluate their relative rates. We will then present simulation results for the
production rates and kinematics of the dominant processes at C3 , namely incoherent e+ e− pair
production and hadron photoproduction, and discuss technical challenges with these simulations,
relevant for any e+ e− machine. Finally, utilizing full detector simulation for the SiD detector
concept, we assess the impact of these backgrounds on the occupancy of the various sub-detector
systems, most notably the vertex detector, and evaluate the effects of variations in the bunch timestructure of the beams. Our results indicate that C3 background rates are compatible with the SiD
concept and enable further beam parameter and detector optimizations in order to maximize theprecision of important measurements at C3 .

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主著者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US)); METTNER, Elias (University of Wisconsin–Madison); GRAY, Lindsey (Fermi National Accelerator Lab. (US)); VERNIERI,Caterina (SLAC National Accelerator Laboratory (US))
発表者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US))
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

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Advancing Timing Resolution of ⋯投稿 ID: 90

タイプ: Poster (in person)

Advancing Timing Resolution of Strip Scintillators
for Electromagnetic Calorimeters2024 年 7 月 8 日月曜日 17:40 (20 分)
In the upcoming generation of collider experiments, such as the proposed Linear Collider Higgs
Factory, precise measurement of particle flow (PF) is pivotal for enhancing the energy resolutionof jets, which consist of numerous hadrons observed in the final state. To achieve this, we focus
on equipping fine-segmented electromagnetic calorimeters with high-precision time measurement
capabilities, thereby facilitating improved discrimination of particles within jets and aiding in cluster reconstruction within the jet calorimeter.
In our research, we emphasize the essential role of electromagnetic calorimeters with highlysegmentation, necessitating a cell size of 5 mm x 5 mm. By enhancing each cell with high-precisiontime measurement, we aim to advance the accuracy of energy measurements and improve the identification of parent particles within jets. Furthermore, our approach holds promise for exploring
Beyond the Standard Model (BSM) physics, particularly in the detection of long-lived particles.
To achieve these objectives, we have developed a novel configuration for the electromagnetic
calorimeter, employing scintillator strips arranged orthogonally to ensure both positional resolution and a reduced number of readout channels. The scintillator strips have been read out the
scintillation light at the both end edges by serially connected silicon photo-sensors. This configuration increase the photons and improve the time resolution. Various configurations are tested at thebeam test at KEK. Moreover, our measurements are anticipated to refine the accuracy of time measurements within electromagnetic showers. Through electron beam tests, we have demonstrated
significant improvements in time resolution performance. In this presentation, we will showcase
the results of our efforts to enhance the optical readout method of the current strip scintillator
for electromagnetic showers, thereby advancing the capabilities of linear collider Higgs Factory
collider experiments.

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Yes

主著者: TAKESHITA, Tohru (Shinshu University (JP))
共著者: Mr ISHITANI, Masamune (Shinshu University)
発表者: Mr ISHITANI, Masamune (Shinshu University)
セッション分類: Posters
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

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投稿 ID: 91

Addressing technological challen ⋯タイプ: Oral presentation (in person)

Addressing technological challenges on
sensor-electronics hybridization for compact silicontungsten electromagnetic calorimeters.
2024 年 7 月 9 日火曜日 9:00 (30 分)
Highly compact and granular sandwich silicon tungsten calorimeters are part of the detector concepts proposed for all future Higgs Factories and for strong-field-QED (LUXE) or Dark Mattersearch experiments. This contribution discusses some of the technological challenges of sensorelectronics hybridization for this type of calorimeters. Different alternatives have been explored
and used in the past, e.g. tab-bonding and epoxy-silver glue dots, with limited success. A joint
R&D effort by different groups to study this technology’s long-term viability. It comprises ageing studies, careful monitoring of PCB mechanical properties, the validation of different industrial
choices for the epoxy-silver product and the optimization/automation of the process by different
institutes. The challenges and status of these activities are discussed in this contribution.

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主著者: IRLES, Adrian (IFIC (CSIC/UV) Valencia); ZERWAS, Dirk (Université Paris-Saclay (FR)); BENHAMMOU, Yan (Tel Aviv University (IL))
発表者: IRLES, Adrian (IFIC (CSIC/UV) Valencia)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

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投稿 ID: 92

Nanosecond timing MAPS
タイプ: Oral presentation (in person)

Nanosecond timing MAPS
2024 年 7 月 9 日火曜日 11:00 (20 分)
The detectors at future e+e- linear colliders will need unprecedented precision on Higgs physics
measurements. These ambitious physics goals translate into very challenging detector requirements on tracking and calorimetry. Monolithic Active Pixel Sensor (MAPS) technology offers
small dead areas, thin sensors, and small pixels over large areas. Future e+e- Colliders could benefit from O(ns) timing tagging, with the constraint that the overall power consumption stays within
the target of few tens of mW/cmˆ2. Today some commercial imaging technologies offer the possibility of producing large, stitched sensors (with a rectangle area ˜30 cm × 10 cm). Such large sensors
are very interesting from a physics point of view, but they are very challenging from an engineering point of view. A first MAPS prototype ʻNAPA-p1’was designed by SLAC in CMOS Imaging
65 nm technology. The prototype has dimensions of 1.5 mm × 1.5 mm with a pixel pitch of 25
μm. This work benefits from our collaboration with CERN, capitalizing on the improved sensor’s performance after a decade of optimizations. This prototype will set the baseline for the sensor
and the electronics performance which will serve future developments. This talk will feature thefirst measurements performed to fully characterized this prototype.

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主著者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); BRAU, James; ROTA,
Lorenzo (SLAC); BREIDENBACH, Martin (SLAC); VASSILEV, Mirella (Stanford U)
発表者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US))
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

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投稿 ID: 93

Next Generation LLRF Control Pl ⋯タイプ: Oral presentation (in person)

Next Generation LLRF Control Platform for
Compact C band Linear Accelerator
2024 年 7 月 10 日水曜日 12:00 (20 分)
The Low-Level RF (LLRF) control circuits of linear accelerators (LINACs) are conventionally realized with heterodyne based architectures, which have analog RF mixers for up and down conversion with discrete data converters. We have developed a new LLRF platform for C band linear
accelerator based on the Frequency System-on-Chip (RFSoC) device from AMD Xilinx. The integrated data converters in RFSoC can directly sample the RF signals in C band and perform the up
and down mixing digitally. The programmable logic and processors required for signal processingfor LLRF control system are also included in a single RFSoC chip. With all the essential components integrated in a device, the RFSoC-based LLRF control platform can be implemented morecost-effectively and compactly, which can be applied to a broad range of accelerator applications.
In this paper, the structure and configuration of the newly developed LLRF platform will be described. We have performed a detailed performance evaluation based on the requirements of C
band linear accelerators and part of the characterization results will be presented and discussed.

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主著者: LIU, Chao (SLAC National Accelerator Laboratory)
共著者: NANNI, Emilio (SLAC National Accelerator Laboratory); RUCKMAN, Larry (SLAC National
Accelerator Laboratory); HERBST, Ryan (User)
発表者: LIU, Chao (SLAC National Accelerator Laboratory)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

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投稿 ID: 95

Development of a half-meter scale ⋯タイプ: Oral presentation (in person)

Development of a half-meter scale Traveling-Wave(TW) SRF cavity
2024 年 7 月 10 日水曜日 9:20 (20 分)
While a demonstration of TW resonance excitation in the 3-cell structure in 2K liquid helium had
been prepared and carried out at Fermilab in collaboration with Euclid Techlabs, the RF design
process of 0.5˜1 meter scale TW cavity was begun at Fermilab as the next step of TW development
towards an accelerator-scale one. Considering the physical dimensions of existing SRF facilities(for fabrication, processing, and cryogenic testing), Fermilab has proposed a half-meter scale TW
RF design consisting of a 7-cell structure and a power feedback waveguide (WG) loop. The WG
loop design includes the new RF configurations for TW resonance control during a high-power
operation. 1-year US-Japan collaboration program focused on EBW optimization for the TW shapeiris joint within the narrow gap was awarded and the efforts had been made by KEK, Jlab, andFermilab. 1-year LDRD program of Fermilab is awarded recently to fabricate a low-cost mockupof the WG loop with new RF configurations and validate them. Here we will present a preliminary
7-cell TW RF design and report the progress and challenges through the awarded programs.

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主著者: Dr FURUTA, Fumio (Fermilab)
共著者: MCGEE, Kellen (Fermilab)
発表者: Dr FURUTA, Fumio (Fermilab)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

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投稿 ID: 96

Drift chamber with cluster count ⋯タイプ: Oral presentation (in person)

Drift chamber with cluster counting techniques for
CEPC
2024 年 7 月 10 日水曜日 9:20 (20 分)
The Circular Electron Positron Collider (CEPC) is a large-scale collider facility with a circumference of 100 km. It is designed to study rich physics programs, including investigations into Higgs
properties, electroweak physics and flavor physics. A good identification of charged hadrons isessential for the flavor physics and benefits the determination of jet flavor and jet charge. To
achieve these physics goals, a drift chamber is proposed for excellent particle identification (PID)
performance with the cluster counting technique. Cluster counting measures the number of primary ionizations (dN/dx) along the particle trajectory in a gaseous detector, rather than relying onenergy loss (dE/dx). This approach represents a promising breakthrough in PID. The Poissonian
nature of dN/dx provides a statistically significant way to measure ionization, potentially yieldinga resolution two times better than dE/dx.
A detailed PID study of the drift chamber will be presented. Simulation studies, including thedetector and electronics responses, as well as the machine-learning reconstruction algorithm, areperformed to optimize the detector design and performance. The PID results using dN/dx andtime-of-flight show that the kaon and pion separation power, with a track length of 1.2 m, canachieve a 3σ significance for momenta less than 20 GeV/c. Mechanical design has been carriedout and finite-element-analysis results demonstrate a stable design. Fast readout electronics havebeen developed, and a detector prototype has been tested with an electron beam. The test results
validate the performance of the electronics and the feasibility of the dN/dx method.

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主著者: Dr ZHAO, Guang (IHEP)
共著者: HUANG, Fei; LI, Gang; LIU, Hongbin; Prof. WU, Linghui (IHEP); DONG, Mingyi (Institute of High Energy Physics, CAS); JIN, Shengjie; SUN, Shengsen; LIU, Shuaiyi; WEI, Wei; QIAN,
Xiaohui; GAO, Xu; ZHAO, Yubin; TIAN, Zhefei; ZHANG, Zhenyu
発表者: Dr ZHAO, Guang (IHEP)
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

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投稿 ID: 97

Streamlined jet tagging network a ⋯タイプ: Oral presentation (in person)

Streamlined jet tagging network assisted by jetprong structure2024 年 7 月 9 日火曜日 14:00 (20 分)
Attention-based transformer models have become increasingly prevalent in collider analysis, offering enhanced performance for tasks such as jet tagging. However, they are computationallyintensive and require substantial data for training. In this paper, we introduce a new jet classification network using an MLP mixer, where two subsequent MLP operations serve to transformparticle and feature tokens over the jet constituents. The transformed particles are combined withsubjet information using multi-head cross-attention so that the network is invariant under the permutation of the jet constituents. The network structure is closely related to the multiscale natureof HEP events.
The proposed network demonstrates comparable classification performance to state-of-the-art
models while boosting computational efficiency drastically. The network structure can be applied
to the various collider processes.

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主著者: Prof. NOJIRI, Mihoko (IPNS, KEK)
共著者: Dr HAMMAD, Ahmed (KEK)
発表者: Dr HAMMAD, Ahmed (KEK)セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

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投稿 ID: 98

Loop induced H±W±Z vertex in C ⋯タイプ: Oral presentation (in person)

Loop induced H±W±Z vertex in CP violating two
Higgs doublet model and its impact on collider
phenomenology
2024 年 7 月 10 日水曜日 12:10 (15 分)
The two Higgs doublet model, which can serve enough CP violation and first order electroweak
phase transition, is often introduced to realize electroweak baryogenesis.
If CP symmetry is violated in the two Higgs doublet model, it does not have custodial symmetry,
which is remnant of global symmetry of SU(2)L × SU(2)R.
It has been known that H±W±Z vertex is induced at the loop level due to the violation of custodial
symmetry.
As a consequence of breaking CP and custodial symmetry, we study loop-induced H± -> W±Z
decay in the most general CP violating two Higgs doublet model.
In this talk, we discuss the relation between violations of CP and custodial symmetry and the
H±W±Z vertex, and we show its impact on future colliders including ILC.

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主著者: KANEMURA, Shinya (Osaka University); MURA, Yushi (Osaka Univ.)
発表者: MURA, Yushi (Osaka Univ.)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 99

Distributed Coupling Linac for Ef ⋯タイプ: Oral presentation (in person)

Distributed Coupling Linac for Efficient Accelerationof High Charge Electron Bunches
2024 年 7 月 10 日水曜日 16:00 (20 分)
Future colliders will require injector linacs to accelerate large electron bunches over a wide range
of energies. For example the Electron Ion Collider requires a pre-injector linac from 4 MeV up to
400 MeV over 35 m. Currently this linac is being designed with 3 m long traveling wave structures,
which provide a gradient of 16 MV/m. We propose the use of a 1 m distributed coupling design as apotential alternative and future upgrade path to this design. Distributed coupling allows power tobe fed into each cavity directly via a waveguide manifold, avoiding on-axis coupling. A distributed
coupling structure at S-band was designed to optimize for shunt impedance and large aperturesize. This design provides greater efficiency, thereby lowering the number of klystrons required to
power the full linac. In addition, particle tracking analysis shows that this linac maintains lower
emittance as bunch charge increases to 14 nC and wakefields become more prevalent. We present
the design of this distributed coupling structure, as well as cold test data and plans for higher
power tests to verify on the structure’s real world performance.

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主著者: DHAR, Ankur (SLAC National Accelerator Lab); NANNI, Emilio (SLAC National Accelerator
Laboratory); WHITE, Glen (SLAC); BAI, Mei; OTHMAN, Mohamed; TANTAWI, Sami (SLAC); LI,
Zenghai (SLAC)

発表者: DHAR, Ankur (SLAC National Accelerator Lab)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

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投稿 ID: 100

Impact of NLO QCD on Key Phys ⋯タイプ: Oral presentation (in person)

Impact of NLO QCD on Key Physics Processes atFuture Higgs Factories
2024 年 7 月 10 日水曜日 11:40 (20 分)
The majority of Monte-Carlo (MC) simulation campaigns for future Higgs factories has so far been
based on the leading-order (LO) matrix elements provided by Whizard 1.95,
followed by parton shower and hadronization in Pythia6,
using the tune of the OPAL experiment at LEP.
In this contribution, we test the next-to-leading-order (NLO) mode of Whizard.
NLO events of e+ e− → q q̄ and e+ e− → µ+ µ− bb̄ are generated by POWHEG matching,with parton shower and hadronization provided by Pythia8.
The NLO effect on hadron multiplicities and event shape variables of jets will be
discussed and compared with MadGraph5 at hadron-level.
After passing the events through the full detector simulation of theInternational Large
Detector concept as an example for a ParticleFlow-optimised detector,
the jet energy
resolution and typical kinematic quantities are compared between NLO andLO at reconstruction level.
A first assessment of which physics prospects of future e+ e− should bestudied with NLO MC in the future will be given.

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主著者: ZHAO, Zhijie (DESY)
共著者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); BERGGREN, Mikael (Deutsches
Elektronen-Synchrotron (DE))
発表者: ZHAO, Zhijie (DESY)
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

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投稿 ID: 101

4b + X via electroweak multi- ⋯タイプ: Oral presentation (remote)4b + X via electroweak multi-Higgs production as
smoking gun signal for the Type-I 2HDM at the LHC
2024 年 7 月 9 日火曜日 12:15 (15 分)
The existence of additional Higgs bosons, besides the one
discovered by the LHC, already a decade ago, is predicted by mostframeworks of new physics. Observation of a second Higgs boson(charged or neutral) will thus provide a firm evidence that theunderlying manifestation of the Electroweak Symmetry Breaking (EWSB)
mechanism is a non-minimal one. The majority of analyses, bothphenomenological and experimental ones, involving additional Higgs
bosons concentrate on QCD induced production modes.
However, the QCD induced processes are not necessarily to be high in
new physics models owing to the non-standard couplings of the
new Higgs bosons to the fermions and gauge bosons. As a reference,
I consider the Type-I two Higgs doublet model (2HDM) as a simple
extension of Standard Model where the Electroweak (EW) processes dominate
over the QCD processes. I would like to discuss a full detector-level Monte Carlo analysis to establish that the inclusive 4b+X final state via EW processes can provide simultaneous reconstructionof all the additional Higgs boson masses. I will present the algorithms for the mass reconstructionsof the additional Higgs bosons.

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主著者: Dr SANYAL, Prasenjit (Konkuk University)
発表者: Dr SANYAL, Prasenjit (Konkuk University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 102

Top mass measurement at the CEPC
タイプ: Oral presentation (remote)Top mass measurement at the CEPC
2024 年 7 月 9 日火曜日 11:20 (20 分)
The study is based on the publication of EPJC 83, 269 (2023).
We present a study of top quark mass measurements at the t\bar{t} threshold based on CEPC. A
centre-of-mass energy scan near two times of the top mass is performed and the measurement
precision of top quark mass, width and \alpha_S are evaluated using the t\bar{t} production rates.
Realistic scan strategies at the threshold are discussed to maximise the sensitivity to the measurement of the top quark properties individually and simultaneously in the CEPC scenarios assuming
a limited total luminosity of 100 fbˆ{-1}. With the optimal scan for individual property measurements, the top quark mass precision is expected to be 9 MeV, the top quark width precision is expected to be 26 MeV, and \alpha_S can be measured at a precision of 0.00039. Taking into accountthe uncertainties from theory, background subtraction, beam energy and luminosity spectrum, thetop quark mass can be measured at a precision of 14 MeV optimistically and 34 MeV conservatively
at CEPC.

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主著者:

SUN, Xiaohu (Peking University); FANG, Yaquan (Chinese Academy of Sciences (CN))

発表者: FANG, Yaquan (Chinese Academy of Sciences (CN))
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

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投稿 ID: 103

CP-violating top-Higgs coupling i ⋯タイプ: Oral presentation (in person)

CP-violating top-Higgs coupling in SMEFT
2024 年 7 月 10 日水曜日 16:55 (20 分)
The total cross section of the process µ− µ+ → νµ ν̄µ tt̄H has strong dependence on the CP phaseof the top Yukawa coupling. We study the cause of the strong energy dependence and identify its
origin as the E/mW growth of the weak boson fusion subamplitudes, W − W + → tt̄H, when the
two W ’s are longitudinally polarized. We repeat the study in the SMEFT framework where EW
gauge invariance is manifest and find that the highest energy cross section is reduced to a quarterof the complex top Yukawa model result at high energies. By applying the Goldstone boson (GB)equivalence theorem, we identify the origin of this strong energy growth of the SMEFT amplitudes
as associated with the dimension-6 ttHππ vertex, where π’s are the GB of W ± . We obtain theunitarity bound on the coefficient of the SMEFT operator by studying all 2 → 2 and 2 → 3 crosssections in the J = 0 channel.

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主著者: BARGER, Vernon; HAGIWARA, Kaoru; ZHENG, Ya-Juan
発表者: ZHENG, Ya-Juan
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 104

ILC Site-Specific Activities by To ⋯タイプ: Oral presentation (in person)

ILC Site-Specific Activities by Tohoku ILC Project
Development Center
2024 年 7 月 9 日火曜日 13:50 (15 分)
In August 2020, Tohoku ILC Project Development Center was launched with specific studies led
by the ILC region to finalize regional detailed plans for the ILC project and local decision-making
issues for the construction of the ILC. This center is responsible for activities more closely related
to IDT (ILC International Development Team), KEK and AAA (Advanced Accelerator Association).
The presentation includes the topographical and geological survey and the facility layout study,
available sources for electrical and hydraulic power, the evaluation of the ILC central campus
sites, the logistics/assembly base research/study, the urban planning and acceptance environment
improvement study, the natural environment studies for the ILC siting and the green ILC.

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主著者: SUZUKI, Atsuto
発表者: SUZUKI, Atsuto
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

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投稿 ID: 105

The alignment of the modules of t ⋯タイプ: Oral presentation (remote)

The alignment of the modules of the Cool Copper
Collider (Cˆ3) with the Rasnik 3-point alignment
system2024 年 7 月 10 日水曜日 14:30 (30 分)
For Cˆ3, approximately 2000 accelerator sub units must be positioned, within 10 um transversal,
on a 2.3 km long straight line for each linac.
In the Rasnik alignment system, light from a point-like monochromatic source falls on a zone plate,forming a Fraunhofer diffraction pattern on an image pixel sensor. The alignment of three objects
can be obtained by analyzing the position of the diffraction pattern on the sensor.
The alignment of a large number of objects can be realized by fixing a stick on each object, carrying the three Rasnik components. With this leap frog geometry, all sticks are mutually coupled,
forming a multipoint alignment system [1].
This system should operate in ambient air, in vacuum, and in liquid nitrogen. Usable low-cost laser
diodes that operate in these conditions have been found, as well as one type image pixel sensor,
applied in an old Microsoft webcam. Due to the heat dissipation of these components, bubbles
are formed, causing an error in the measured alignment when crossing the optical path. Various
methods of beam shielding are presented.
With the Quarter Cryo Module (QCM), essential studies will be carried out, enabling the realization of the C3 collider. The QCM will be equipped with four Rasnik chains, measuring alignment
parameters with redundancy. In addition, the bubble-induced vibrations of the accelerator components can be registered accurately.
[1] H. van der Graaf et al., The alignment of the C3 Accelerator Structures with the Rasnik alignment system. Proceedings of LCWS 2023. arxiv: 2307.07981

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主著者: VAN DER GRAAF, Harry (Nikhef National institute for subatomic physics (NL))
発表者: VAN DER GRAAF, Harry (Nikhef National institute for subatomic physics (NL))
セッション分類: Applications
トラック種別: Accelerator: Applications

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 106

Finding kink signatures of LLPs in ⋯タイプ: Oral presentation (in person)

Finding kink signatures of LLPs in TPC at ILC
2024 年 7 月 10 日水曜日 14:00 (20 分)
Some types of LLPs can be indentified by kinked tracks. The Time Projection Chamber (TPC) being
designed for ILD at ILC provides almost continuous tracking. This should give excellent potential
for kink finding. I will review the current kink finder algorithm, and present a new kink finding
method.

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主著者: NAKAJIMA, Jurina (SOKENDAI/KEK)
共著者: JEANS, Daniel
発表者: NAKAJIMA, Jurina (SOKENDAI/KEK)
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 107

New renormalization scheme in e ⋯タイプ: Oral presentation (in person)

New renormalization scheme in extended Higgs
sectors for Higgs precision measurements
2024 年 7 月 10 日水曜日 10:10 (20 分)
We propose a new renormalization scheme in extended Higgs sectors for the coming new era of the
Higgs precise measurements at future lepton colliders. In this new scheme, we use a precisely measured value of the discovered Higgs boson coupling, e.g., hZZ, as an input of the renormalization
condition. We demonstrate how the other Higgs boson couplings (e.g., hWW) can be predicted. inthis new renormalization scheme in the 2 Higgs doublet model as a simple but important example.

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主著者: KANEMURA, Shinya (Osaka University); KIKUCHI, Mariko (Nihon University); YAGYU,
Kei (Osaka University)

発表者: YAGYU, Kei (Osaka University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 108

The fabrication of the 1.3 GHz ⋯タイプ: Oral presentation (in person)

The fabrication of the 1.3 GHz single-cell cavity
utilizing the different grain size niobium materials
2024 年 7 月 10 日水曜日 9:55 (15 分)
As the part of research into the manufacturing methods for SRF cavities used in ILC(International
Linear Collider), two 1.3 GHz single-cell cavities have been fabricated by utilizing fine and medium
grain size niobium materials, respectively, with the same manufacturing equipment. The fine grain
size niobium material typically exhibits a grain size level equivalent to ASTM 5-6, whereas themedium grain size corresponds to ASTM 0-3 levels. The forming of the half cell shapes has been
conducted using the same deep drawing die and press machine. The machining for cavity part
fabrication and the welding for assembly have been carried out using identical jigs and equipment.
We present the fabrication processes and the test results for cavities in detail.

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主著者: Dr HAN, Junho (Kiswire Advanced Technology Co., Ltd.)
共著者: Mr PARK, Heesu (Kiswire Advanced Technology Co., Ltd.); Dr KANG, Seonghoon (Korea
Institute of Materials Science); Prof. KO, Byeong-Rok (Korea University); Prof. KIM, Eun-San (Korea
University)

発表者: Dr HAN, Junho (Kiswire Advanced Technology Co., Ltd.)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 109

New collider implications on a st ⋯タイプ: Oral presentation (in person)

New collider implications on a strongly first order
EWPT.
2024 年 7 月 10 日水曜日 16:45 (15 分)
In order to understand the early history of the universe, and to test baryogenesis models, determining the nature of the electroweak phase transition is imperative. The order and strength of
this transition is strongly correlated to relatively large deviations in the hhh coupling. In models
where a considerable part of the hhh coupling deviation is caused by charged particle loops, thehγγ coupling is also expected to deviate considerably. In this talk, by using a model-independent
approach, I explain how to obtain conditions that are sufficient for a strongly first order phasetransition. After the hγγ is determined with precision at the HL-LHC, these conditions can betested at Future Linear Colliders by measurements of the hhh coupling, to conclusively determine
the nature of the electroweak phase transition and the viability of electroweak baryogenesis onmodels with new charged scalars.

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主著者: TANAKA, Masanori (Osaka University); FLORENTINO, Ricardo; KANEMURA, Shinya(Osaka University)
発表者: FLORENTINO, Ricardo
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 110

Cryomodule Test Buncer for ITN
タイプ: Oral presentation (in person)

Cryomodule Test Buncer for ITN
2024 年 7 月 10 日水曜日 11:20 (20 分)
ITN is an acronym for “ILC Technology Network”.
It is an international framework for the technological development outlined in the Work Package(WP).
KEK plans to produce one cryomodule equipped with eight superconducting 9-cell cavities for
WP1 and 2 from 2023 and perform performance measurements in 2027.
A test facility will be required to perform the measurements.
We are preparing the cryogenics for the facility.
The refrigerator (Linde LR280) currently operating at KEK will be dedicated to that.
The helium transfer line was designed.
The design was based on KEKB’s transport line design, but it was slightly modified because ILC
does not use liquefied nitrogen for the radiation shield.
The 2K refrigerator, purification filter, and other equipment are also considered. We will report on
the status of those.

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主著者: NAKANISHI, Kota (KEK); NAKANISHI, kota (KEK)
共著者: NAKAI, Hirotaka (KEK); Mr HARA, Kazufumi (KEK); Dr SHIMIZU, Hirotaka (KEK); Mr
HONMA, Teruya (KEK); Ms KESSOKU, Shiori (KEK)
発表者: NAKANISHI, Kota (KEK); NAKANISHI, kota (KEK)セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

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投稿 ID: 111

Monte Carlo Simulations of an el ⋯タイプ: Oral presentation (remote)Monte Carlo Simulations of an electromagnetic
sampling calorimeter with semiconductor sensors
2024 年 7 月 10 日水曜日 17:00 (20 分)
The simulation of particle generation, their interaction with detector materials, and the resulting detector response has become increasingly crucial in recent experiments. Semiconductor+W
calorimeters, known for their high compactness and granularity, are integral components of proposed detector designs for upcoming Higgs Factories as well as experiments targeting strong-fieldQED (LUXE) or forthcoming smaller-scale experiments. This contribution focuses on optimizing
the ECAL electromagnetic calorimeter, foreseen to the LUXE experiment to achieve higher energy
resolution, using a Geant4-based application. Additionally, a fundamental aspect of this effort involves simulating the responses of Si or GaAs -type sensors. This simulation not only contributes
to the initial detector design but also serves as an indispensable tool for predicting the detector’s
performance. Incident electrons with energies ranging from 2.0 to 18.0 GeV were directed towards
ECAL surface, their interactions with materials assesed and the results are presented. Furthermore,detailed configurations of the sampling electromagnetic calorimeter and the Geant4 simulation
package are discussed.

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主著者: Dr NEAGU, Alina-Tania (Institute of Space Science - Subsidiary of INFLPR); Dr GHENESCU,Marian-Traian (Institute of Space Science - Subsidiary of INFLPR); POTLOG, Petru-Mihai (Institute ofSpace Science - Subsidiary of INFLPR); Dr GHENESCU, Veta (Institute of Space Science - Subsidiary of
INFLPR)

発表者: POTLOG, Petru-Mihai (Institute of Space Science - Subsidiary of INFLPR)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 112

Long-lived particle searches with ⋯タイプ: Oral presentation (in person)

Long-lived particle searches with the ILD experiment2024 年 7 月 10 日水曜日 9:41 (20 分)
Future e+ e− colliders, with their clean environment and triggerless operation, offer a unique opportunity to search for long-lived particles (LLPs). Considered in this contribution are prospects
for LLP searches with the International Large Detector (ILD) providing almost continuous tracking
in Time Projection Chamber (TPC) as the core of its tracking systems. The ILD has been developed
as a detector concept for the ILC, but is also applicable to other Higgs Factory options.
The considered signature for neutral LLP production is a highly displaced decay vertex, which
we search for in the TPC. Based on the full detector simulation, we study decays of both light andheavy LLPs. For the heavy, O(100 GeV) LLPs, the most challenging scenarios are those with a small
mass splitting between LLP and the dark matter candidate, resulting in only a very soft displaced
track pair in the final state, not pointing to the interaction point. As the opposite extreme scenario
we consider the production of light, O(1 GeV) pseudo\-scalar LLP, which decays to two highly
boosted and almost colinear displaced tracks. Backgrounds both from soft beam-induced processes
and hard physical events are taken into account. Different tracking system design options and theirimpact on the LLP reconstruction are discussed.
Assuming a single displaced vertex signature, the limits on signal production cross-section arepresented for a wide range of LLP lifetimes and a set of masses or mass splittings. These limits areto a large extent model-independent, reflecting kinematic properties of the considered signature.
They can be used to set limits on particular models, also for more complex signatures involving
displaced vertices.

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主著者: KLAMKA, Jan (University of Warsaw)
共著者: ZARNECKI, Aleksander Filip (University of Warsaw); JEANS, Daniel
発表者: KLAMKA, Jan (University of Warsaw)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 113

Prospects of measuring quantum ⋯タイプ: Oral presentation (in person)

Prospects of measuring quantum entanglement in
H->tautau at a future e+e- Higgs factory
2024 年 7 月 9 日火曜日 9:50 (20 分)
Final states with spin-correlations allow the measurement of quantum entanglement at collider
energies. The H → τ τ process is an excellent probe for this, due to the scalar nature of the Higgs
boson, and the direct access to the τ -lepton helicity through the angular distributions of the τ lepton decay products. We will present the prospects of such a measurement a future e+ e− Higgs
factory using Delphes simulation samples for the signal and the relevant background processes.
The construction of observables sensitive to quantum entanglement of the τ -τ system will be
discussed together with the impact of reconstruction and event selection effects on the sensitivity.

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Yes

主著者: Mr BREUNING, Cedric (University of Bonn)
共著者: GREFE, Christian (University of Bonn (DE)); DESCH, Klaus (University of Bonn (DE)); BECHTLE, Philip (Universitaet Bonn (DE))

発表者: Mr BREUNING, Cedric (University of Bonn)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 114

Probing BSM neutral gauge boson ⋯タイプ: Oral presentation (remote)

Probing BSM neutral gauge boson in high and low
energy experiments
2024 年 7 月 9 日火曜日 14:40 (20 分)
Over a period of time neutral BSM gauge boson is becoming important in the high energy as well as
low energy experiments. In this talk we would like to present my recent works where we studied
Z ′ , a neutral chiral gauge boson under a general U (1) extension of the Standard Model. In this
scenario, there are three generations of right handed neutrinos are introduced which can generatetiny neutrino mass after the breaking of general U (1) gauge group. Studying a variety of low andhigh energy scattering and beam-dump experiments we will show the current parameter space ofthe general U(1) coupling as a function of the Z ′ mass for different U(1) charges.

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主著者: DAS, Arindam
発表者: DAS, Arindam
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 115

Searching for heavy neutral lepto ⋯タイプ: Oral presentation (remote)Searching for heavy neutral leptons in electron
positron colliders
2024 年 7 月 9 日火曜日 11:15 (15 分)
The origin of neutrino mass is a long standing puzzle. Plethora of models have been proposed
to explain the origin of small neutrino mass. Among them tree level seesaw and inverse seesaw
scenarios are the simplest ones where Standard Model (SM) is extended by SM-singlet heavy Right
Handed Neutrinos (RHNs). If the RHN masses are O(TeV) scale, they could be produced in lepton
colliders through the mixing between the light-heavy neutrino mixing (|VℓN |2 ) depending on
the center of mass energy. Such RHNs can decay into a variety of models involving leptons andjets. Studying such finals states from the RHNs we will show the projected bounds on the plane
containing |VℓN |2 and the mass of the RHN and compare with existing bounds.

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主著者: DAS, Arindam
発表者: DAS, Arindam
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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International W ⋯ / 提出物レポート
投稿 ID: 116

Beam backgrounds at HALHF
タイプ: Oral presentation (remote)Beam backgrounds at HALHF
2024 年 7 月 10 日水曜日 16:00 (15 分)
The Hybrid Asymmetric Linear Higgs Factory (HALHF) proposes a shorter and cheaper alternative
for a future Higgs factory. The design includes a 500 GeV electron beam accelerated by an electrondriven plasma wake-field, and a conventionally-accelerated 31 GeV positron beam. Assuming
plasma acceleration R&D challenges are solved in a timely manner, the asymmetry of the collisions
brings additional issues regarding the detector and the physics analyses, from forward boosted
topologies and beam backgrounds. This contribution will detail the impact of beam parameters
on beam-induced backgrounds, and provide a first look at what modification to e.g. the ILD can
improve the physics performance at such a facility. The studies are benchmarked against someflagship Higgs Factory analyses for comparison.

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LAUDRAIN, Antoine (Deutsches Elektronen-Synchrotron (DE)); LIST, Jenny (Deutsches
Elektronen-Synchrotron (DE)); BERGGREN, Mikael (Deutsches Elektronen-Synchrotron (DE))

主著者:

発表者: LAUDRAIN, Antoine (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 96 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 117

Lifecycle Inventory input to an L ⋯タイプ: Oral presentation (in person)

Lifecycle Inventory input to an LCA for ILC and CLIC
2024 年 7 月 9 日火曜日 17:00 (15 分)
As input for the planned Lifecycle Assessment (LCA) of the ILC and CLIC projects, Lifecycle Inventory (LCI) data has been collected. The most important components in terms of environmental
impact, in particular greenhouse gas (GHG) emissions, are estimated to be the accelerating structures (cryo modules for ILC, two beam modules for CLIC), magnets, RF supply system, cryogenics,
vacuum system, and the detectors. We present our approach and preliminary results to the quantification of energy and material inputs during the lifecycle stages of the accelerator.

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主著者: LIST, Benno (DESY); DOEBERT, Steffen (CERN)
共著者: ROSSI, Carlo (CERN); STAPNES, Steinar (CERN)
発表者: DOEBERT, Steffen (CERN)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 97 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 118

Cold Copper High Gradient ⋯タイプ: Oral presentation (in person)

Cold Copper High Gradient Single-Cell Structure
Tests
2024 年 7 月 10 日水曜日 10:00 (20 分)
We will present results from high gradient structure testing of C-band single-cell copper (Cu) andcopper silver (CuAg) accelerating structures at 77 K. C-band accelerators have been of particular interest in recent years due to their ability to provide high gradients and transport high charge beams
for applications ranging from colliders to medical technologies. These technologies are made possible by new advances in high gradient technologies that can suppress the breakdown rates byusing distributed coupling, cryogenic cooling, and copper alloys. Previous work has shown eachof these separately to significantly improve the maximum achievable gradient. In this work, forthe first time, we combine all three methods in an ultra-high gradient structure and benchmark
the difference between Cu and CuAg. These structures are tested at 77K simultaneously througha hybrid manifold while breakdown statistics were collected. In addition, we will show that at
gradients exceeding 200 MeV/m the presence of significant beam loading caused a suppression in
the quality factor as a function of time.

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主著者: KRASNYKH, Anatoly; DHAR, Ankur; NANNI, Emilio (SLAC National Accelerator Laboratory); SCHNEIDER, Mitchell
発表者: NANNI, Emilio (SLAC National Accelerator Laboratory)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 98 をご覧ください。

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投稿 ID: 119

The Compact Positron Source
タイプ: Oral presentation (in person)

The Compact Positron Source
2024 年 7 月 10 日水曜日 9:00 (20 分)
We present designs and plans for a university-scale positron source that can deliver low-emittancebeams for experiments [1]. The source is based on a Penning-Malmberg trap. We discuss positron
generation and extraction, with specific focus on bunch manipulation at the exit of the trap. We
describe some applications of positron beams from the trap.
[1] Compact source of positron beams with small thermal emittance. R Hessami and S Gessner,
Phys. Rev. Accel. Beams 26, 123402 (2023)

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主著者: HESSAMI, Rafi (Stanford); GESSNER, Spencer (SLAC)
発表者: GESSNER, Spencer (SLAC)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 99 をご覧ください。

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投稿 ID: 120

Multi-bunch beam dynamics stud ⋯タイプ: Oral presentation (remote)Multi-bunch beam dynamics studies in the C3 mainlinac
2024 年 7 月 10 日水曜日 9:00 (20 分)
The Cool Copper Collider (C3) is a novel electron-positron linear collider concept that utilizes
a cryogenically-cooled copper accelerator technology. It is designed to accelerate 133 bunchesof electrons/positrons from 10 GeV to 125 GeV while preserving the beam quality. In order toachieve the target beam’s luminosity, careful studies of the long-range higher order modes (HOM)
wakefield effects must be taken into account for the design of the accelerating structure. Here
we present the analysis of the beam dynamics studies for the long range HOM wakefields. We
will show the accelerator operating parameters and important frequency bands that deteriorate
the beam. After that, we present detuning and damping results which are then used to guide thedesign of the accelerating structure.

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主著者: TAN, Wei-Hou (SLAC); LI, Zenghai (SLAC); NANNI, Emilio (SLAC National Accelerator
Laboratory)
発表者: TAN, Wei-Hou (SLAC)
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 100 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 122

Exploring new physics by loop- ⋯タイプ: Oral presentation (in person)

Exploring new physics by loop-corrected decays ofadditional Higgs bosons
2024 年 7 月 9 日火曜日 12:00 (15 分)
In order to test and discriminate the extended Higgs models, it is quite important to include radiative corrections to the analyses for the synergy between the precise measurements of the discovered Higgs boson (h125) and the direct searches for additional Higgs bosons. Deviations ofcouplings of h125 from the standard model (SM) predictions give the upper limit on masses of additional Higgs bosons, and change predictions of decay rates of additional Higgs bosons. Precise
calculations including loop corrections are clearly important for comparison with precise measurements of the h125 couplings in future collider experiments. We calculate the loop-corrected
correlation between the branching ratio of additional Higgs bosons and the deviation in the h125
→ ZZ∗ decay from the SM prediction in the two Higgs doublet model,
and show that loop corrections can significantly change the correlation predicted at LO. We perform the calculations of loop corrections based on Fortran code “H-COUP version 3” (http://wwwhet.phys.sci.osaka-u.ac.jp/˜hcoup/) with some modifications for the renormalization conditions.

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主著者: KIKUCHI, Mariko (Nihon University); KANEMURA, Shinya (Osaka University); YAGYU,
Kei (Toyama); SAKURAI, Kodai (Tohoku University); Dr AIKO, Masashi
発表者: KIKUCHI, Mariko (Nihon University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 101 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 123

Unconventional Searches of Exot ⋯タイプ: Oral presentation (remote)

Unconventional Searches of Exotic particles atFuture Linear Colliders
2024 年 7 月 9 日火曜日 15:00 (20 分)
Current collider experiments, such as LHC have been studying the production of the BSM particles
and their decay to the Standard Model particles. These searches have placed strong constraints on
different BSM models as well as on the mass of BSM particles. The situation demands to look foralternative scenarios. BSM theories such as the Pati Salam Model, Composite Higgs, and otherssuggest that the interaction among different BSM particles exists such that the exotic particle of
one type decays to the exotic particle of type two first then to the SM particles. This in turn reveals
exciting new signatures. Now, due to the long decay chain, a large number of particles are present
at the final state. If the final state is accompanied by a large number of jets, then linear colliders
offer a much cleaner environment to study them. Moreover, photon-photon fusion also provides alarge cross-section. In this talk, I will discuss some of these alternative searches of exotic fermionand scalars at future colliders such as the International Linear Collider and photon photon collider.

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主著者: Dr KUMAR, Nilanjana (CCSP, SGT University, India)
発表者: Dr KUMAR, Nilanjana (CCSP, SGT University, India)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 102 をご覧ください。

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A New Method for Measuring the ⋯投稿 ID: 124

タイプ: Poster (in person)

A New Method for Measuring the Higgs Mass at ILC
2024 年 7 月 8 日月曜日 17:40 (20 分)
The Higgs mass as one of the fundamental parameters in the Standard Model has been alreadymeasured pretty well by the data collected so far at the LHC. However in some cases of looking
for small deviations from the SM, current precision or projection of the Higgs mass measurement
at the LHC or HL-LHC may not be good enough. One prominent example is for the SM prediction of the Higgs partial decay width to WWor ZZ, in which the Higgs mass uncertainty becomes
one of the leading sources of parametric theory error. It is expected that at future e+e- colliders
we can improve the Higgs mass precision significantly by the well-known “recoil mass method”, at least statistically. This research proposes a new method which may complement to the recoil mass method in terms of systematic errors. The new method employs the signal channel ofHiggs decaying to a pair of fermions, in particular tau leptons, and makes use of transverse momentum conservations alone instead of the 4-momentum conservation in the recoil mass method.
The key experimental observables will be just the momentum directions of tau leptons without
any input from energy measurement, and the momentum directions can possibly be measured byreconstructing the decaying vertex of the tau leptons. This new method can in principle be appliedat the LHC as well. We will explore this method by performing realistic detector simulation andphysics analysis at the ILC.

Apply for poster award
Yes

主著者: BERGER, Thomas
共著者: TIAN, Junping (University of Tokyo)
発表者: BERGER, Thomas
セッション分類: Posters
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 103 をご覧ください。

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Optimal Collision Energy for Hig ⋯投稿 ID: 125

タイプ: Poster (in person)

Optimal Collision Energy for Higgs Precision
Measurements at the ILC250
2024 年 7 月 8 日月曜日 17:40 (20 分)
The ILC is currently proposed to be running at 250 GeV at the initial stage, based on the fact thatthe cross section of the leading Higgs production channel (ZH) peaks at more or less 250 GeV.
Due to the effects of beamstraglung and initial state radiation which shift the effective center ofmass energies, the more optimal collision energy has not been known yet. First, we will carry out
analyses of the ZH cross section measurement and evaluate the impact of the collision energy bya scan between 240 to 260 GeV. Second, the effects of anomalous Higgs couplings between Higgs
and ZZ are momentum-dependent, thus very much sensitive to the collision energies. More over,having the anomalous HZZ couplings measured at a couple of energy points may provide significant improvement due to the large correlation between anomalous and SM-like HZZ couplings.
We will carry out such studies and propose a new scenario of collision energy for the ILC250.

Apply for poster award
Yes

主著者: MARIA, Andrea Siddharta
共著者: TIAN, Junping (University of Tokyo)
発表者: MARIA, Andrea Siddharta
セッション分類: Posters
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 104 をご覧ください。

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Study of Majorana Right Handed ⋯投稿 ID: 126

タイプ: Poster (in person)

Study of Majorana Right Handed Neutrino (RHN)
production at ILC
2024 年 7 月 8 日月曜日 17:40 (20 分)
We study Majorana Right Handed Neutrinos (RHN) production at ILC. Various extensions of the
SM aim to explain the origin of the tiny neutrino mass; one of them is by the introduction of RHN.
When we assume that RHN is a Majorana particle, RHN pair production is allowed in e−e+ collisions. We focus on this RHN pair production based on a minimal U(1)B−L model. A distinctive
signature is a pair of same sign leptons, which is almost free of SM backgrounds.
In our study, we used full detector simulation to analyze RHN production at ILC. We generated thisprocess, investigated its properties, developed reconstruction and selection strategies and evaluated the sensitivity at ILC. Considering full SM backgrounds, we derived exclusion limits on minimal U(1)B−L parameters at ILC.

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Yes

主著者: NAKAJIMA, Jurina (SOKENDAI/KEK)
共著者: DAS, Arindam (UA); JEANS, Daniel; FUJII, Keisuke; OKADA, Nobuchika (University of
Alabama); YONAMINE, Ryo (KEK); Dr OKADA, Satomi (The University of Alabama)
発表者: NAKAJIMA, Jurina (SOKENDAI/KEK)
セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 105 をご覧ください。

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投稿 ID: 127

Traveling Wave Demonstration in ⋯タイプ: Oral presentation (in person)

Traveling Wave Demonstration in SRF Cavity With a
Feedback Waveguide2024 年 7 月 10 日水曜日 9:00 (20 分)
Conventional SRF cavities are used in standing wave regime and are limited by surface fields to
˜50 MV/m. In order to overcome this limit, Superconducting Traveling Wave (SCTW) cavity was
proposed as it allows to achieve ˜1.5 times higher accelerating gradient operating at lower phaseadvance per cell, thus improving transit time factor. However, power recirculation through afeedback waveguide is required to maintain cavity efficiency. Funded by the U.S. Department ofEnergy’s SBIR program, Euclid Techalbs, in collaboration with Fermilab, demonstrated in the past
the surface processing capability of a single-cell prototype with a feedback waveguide. Subsequently, a 3-cell prototype was designed and fabricated to demonstrate a traveling wave regime in
SRF cavity with a feedback waveguide at cryogenic temperatures and the highest gradients. Here
we present our recent results of traveling wave demonstration in the 3-cell prototype, tested in 2K
liquid helium at Fermilab.

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主著者: KOSTIN, Roman (Euclid Techlabs)
共著者: KANAREYKIN, Alexei (Euclid Techlabs); Dr FURUTA, Fumio (Fermilab); MCGEE, Kellen(Fermilab); Mr AVRAKHOV, Pavel (Euclid Techlabs); BELOMESTNYKH, Sergey (Fermilab); KHABIBOULLINE, Timergali (Fermilab); YAKOVLEV, Vyacheslav (Fermilab)
発表者: KOSTIN, Roman (Euclid Techlabs)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 106 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 128

Smartcell X-Band Normal Condu ⋯タイプ: Oral presentation (remote)

Smartcell X-Band Normal Conducting Accelerator
Structure Prototype Fabrication
2024 年 7 月 9 日火曜日 11:40 (20 分)
This presentation details the design and fabrication process of a prototype of a normal-conducting
X-band accelerator structure, which we denominate Smartcell. These structures, achieved throughbrazing/bonding techniques, are crucial components for future linear colliders.
We will cover the brazing/bonding geometry, materials selection and their implications, variationsin heat cycles, and atmospheres employed during brazing/bonding. The impact of copper quality and annealing procedures implemented before, during, and after machining will be discussed
specifically on how they can influence the machinability, microstructure, and ultimately the performance of the final component.
The presentation will showcase the behaviour of five mock-ups, including the results and conclusions obtained through optical examination, metrology, and SEM analysis. We will also discusssilicon carbide RF properties and characterization throughout the fabrication process.

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主著者: MORALES SANCHEZ, Pedro (CERN)
共著者: CATALAN LASHERAS, Nuria (CERN)
発表者: MORALES SANCHEZ, Pedro (CERN)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 107 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 129

Industrial Efforts for X-Band Acc ⋯タイプ: Oral presentation (remote)Industrial Efforts for X-Band Accelerator Structure
Fabrication (Europe)2024 年 7 月 9 日火曜日 14:20 (15 分)
Since 2007, CERN has been fabricating normal conducting structures in collaboration with industry. With PSI joining some years later, only academic institutions have been pushing for further
developments of high gradient structures manufacturing in Europe.
This trend appears to be changing with growing interest from European industry, recognizing
the potential of high gradient, X-band structures. Thanks to public money funding initiatives likeiFast, Muhic, DEFT, XFel, Horizon 2020 with AWAKE, EuPRAXIA or Compactlight, new partnerships between research institutions and companies, have come to light enabling knowledge andtechnology transfer between academia and industry.
This presentation highlights the importance of this collaborative approach in overcoming the significant fabrication challenges associated with X-band structures. Specific examples of these advancements will be showcased, focusing on challenges like achieving tight tolerances on large
copper structures and implementing innovative brazing techniques.

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主著者: MORALES SANCHEZ, Pedro (CERN)
共著者: CATALAN LASHERAS, Nuria (CERN)
発表者: MORALES SANCHEZ, Pedro (CERN)
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 108 をご覧ください。

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W pair production at lepton colli ⋯投稿 ID: 131

タイプ: Poster (in person)

W pair production at lepton colliders in the
Feynman Diagram gauge
2024 年 7 月 8 日月曜日 17:40 (20 分)
We study the W pair production at future lepton colliders. For the production of longitudinallypolarized W bosons, it is well known that large gauge cancellation occurs among the amplitudes,
especially at high energies, because of the energy growth of each amplitude. In this study, we
adopt a recently-proposed gauge fixing, so-called Feynman-Diagram gauge and revisit the process
to show such energy growth is absent in the FD gauge.

Apply for poster award
Yes

主著者: FURUSATO, Hiroyuki (Iwate University)
発表者: FURUSATO, Hiroyuki (Iwate University)
セッション分類: Posters
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 109 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 132

Commercialization and fundame ⋯タイプ: Oral presentation (in person)

Commercialization and fundamental research ofwaste heat recovery technology using adsorption
heat storage materials
2024 年 7 月 9 日火曜日 17:35 (10 分)○Goh Mitoya, Yuichi Kouno (HKK), Masaya Suzuki, Kazuko Manpuku (AIST), Takashi Kokubo,
Masayuki Tanino, Gen Sato, Shinichi Muraoka (Takasago Thermal Engineering Co., Ltd.), Fukumi
Takahashi, Yasunori Anetai (WING Co., Ltd.), Hisashi Odaira, Kazuya Kikuchi (Iwate Prefectural
Office), Ichiro Hirosawa(SAGA-LS), Masakazu Yoshioka, Shinya Narita, Noriyuki Yoshimoto, Satomi
Fujisaki, Yoichi Takeda (Iwate University)
Abstracts:
Based on the Green ILC concept, an R & D program is underway to recover and utilize thermalenergy emitted from the cooling water of ILC facilities.
Iwate Prefecture, where the ILC Kitakami candidate site is located, is 80% mountainous, which is
not suitable for online transportation of thermal energy.
In order to effectively utilize the thermal energy emitted from the ILC facilities, a thermal energy
circulation model suitable for such regional characteristics is required.
We are aiming to commercialize an off-line waste heat circulation model that utilizes an innovative
adsorptive thermal storage material, ”HASClay”, which can utilize low-grade waste heat of 50100℃.
So far, we have developed a portable container that can hold approximately 10 kg of dry HASClay
and have evaluated its heat storage and emission performance.
On the other hand, one of the issues for practical use is to elucidate the mechanism of water vapor
adsorption/desorption on the microstructure of “HASClay”.
Here, we discuss two issues: (1) a demonstration test for commercialization of a thermal energy
circulation model and (2) basic research to understand the structure and adsorption/desorption
mechanism of “HASClay” using synchrotron radiation.

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主著者: KOUNO, Yuichi
発表者: KOUNO, Yuichi
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 110 をご覧ください。

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Particle-flow reconstruction with ⋯投稿 ID: 133

タイプ: Poster (in person)

Particle-flow reconstruction with Transformer
2024 年 7 月 8 日月曜日 17:40 (20 分)
Transformers are one of the recent big achievements of machine learning, which enables realistic communication on natural language processing such as ChatGPT, as well as being applied tomany other fields such as image processing. The basic concept of a Transformer is to learn relation
between two objects by an attention mechanism. This structure is especially efficient with large
input samples and large number of learnable parameters.
We are studying this architecture applied to the particle flow, which reconstructs particles by clustering hits at highly-segmented calorimeters and assign charged tracks to the clusters.
We apply the structure inspired from a translation task, which uses the Transformer as both an
encoder and a decoder. An original sentence is provided to the encoder input leading to a translated sentence as output of the decoder. The latter is initially provided with a start token and thenrecursively uses its own output as inputs to obtain the final translated sentence.
We supply hits and tracks to the encoder as input, and a start token to the decoder to obtain thefirst cluster. Truth clusters information are provided at learning stage to compare with the decoder
output.
Detailed implementation of the network as well as initial results of particle flow reconstruction
using this method will be shown in the presentation.

Apply for poster award
Yes

主著者: WAHLEN, Paul (ICEPP, The University of Tokyo); SUEHARA, Taikan (ICEPP, The Universityof Tokyo)

発表者: WAHLEN, Paul (ICEPP, The University of Tokyo)
セッション分類: Posters
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 111 をご覧ください。

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投稿 ID: 134

X-band dielectric assist accelerati ⋯タイプ: Oral presentation (in person)

X-band dielectric assist accelerating structure.
2024 年 7 月 9 日火曜日 12:00 (20 分)
A dielectric assist accelerating (DAA) structure, which consists special dielectric cell structures operating in the TM02n mode, is greatly superior in power efficiency compared with the conventional
normal conducting copper structures. On the other hand, DAA structures stays at a low achievable accelerating gradient due to multipactor and breakdowns. To overcome these problems, we
try to develop X-band standing-wave DAA structures and work to understand the physics of the
breakdown phenomena occurring inside them.
A two-cell DAA structure composed by sapphire cell structures has been developed. The unloaded
Q was measured to be above 60,000 at room temperature, in good agreement with the simulation
results. This DAA structure is to be tested using the X-band high power test facility, Nextef2
at KEK. In the high-power test, we plan to perform a short pulse RF excitation using step pulse
input in DAA structures to verify the potential of them to generate a high accelerating field. In
this conference, we will present the status and progress in the development of the X-band DAA
structure.

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主著者: SATOH, Daisuke (National Institute of Advanced Industrial Science and Technology (AIST))
共著者: TETSUO, Abe (KEK); AKEMOTO, Mitsuo (KEK); MATSUMOTO, Shuji (KEK); TAKATOMI,
Toshikazu (KEK); HIGO, Toshiyasu (KEK); HIGASHI, Yasuo (KEK)
発表者: SATOH, Daisuke (National Institute of Advanced Industrial Science and Technology (AIST))
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 112 をご覧ください。

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投稿 ID: 135

Testing the gauged U(1)B-L model ⋯タイプ: Oral presentation (in person)

Testing the gauged U(1)B-L model for loop induced
neutrino mass with dark matter at future colliders
2024 年 7 月 9 日火曜日 11:30 (15 分)
We present a new viable benchmark scenario under the current experimental data for the model
which can explain the tiny mass of active neutrinos and dark matter. Majorana masses of righthanded neutrinos are given by the spontaneous breaking of the U(1)B-L gauge symmetry at the TeV
scale, and tiny neutrino mass are radiatively induced by quantum effects of particles of the dark
sector including the dark matter candidates. We first show the benchmark points which satisfy
current experimental data, and then discuss how this model can be tested at future experiments
including electron-position linear colliders.

Apply for poster award

主著者: YING, GUOHAO (Osaka University)
共著者: KANEMURA, Shinya (Osaka University); MURA, Yushi (Osaka Univ.)
発表者: YING, GUOHAO (Osaka University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 113 をご覧ください。

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投稿 ID: 136

Cavity Beam Position Monitor D ⋯タイプ: Oral presentation (in person)

Cavity Beam Position Monitor Development for the
ILC Main Linac
For future particle colliders, cavity Beam Position Monitors (cBPMs) have emerged as the optimal
solution for precisely measuring the beam position, crucial for guiding and stabilizing high-energy
beams with nanometer precision, thus enhancing luminosity at the interaction point. Resonant
BPMs operate under the principle of detection of specific field configurations (resonant modes)
induced by an off-centered beam within a cavity.
Development is underway for a cryostat accommodating a reentrant cBPM and a superconducting(SC) quadrupole for the ILC Main Linac. Initially, the cBPM and its associated electronics readout
system will undergo testing at ATF under ambient conditions and subsequently at STF for cryogenic temperature tests. Alignment of the SC quadrupole and cBPM centers within the cryostat
is crucial for precise beam position determination. Moreover, the BPM prototype must be capableof measuring the beam position on a bunch-by-bunch basis with temporal and spatial resolutionsof less than 6 ns (for STF) and 1 μm, respectively.
Currently, electromagnetic simulations are being conducted using the commercial software CST
Studio Suite to evaluate BPM performance and converge towards a system that meets the aforementioned requirements.
Additionally, a numerical method called BI-RME 3D is being employed to simulate the effect of awell-defined beam on the cBPM, providing estimates of voltages and waveforms observed at theoutput ports.
The selection of the read-out electronic system is critical to effectively down-convert the frequencyof the rapidly decaying signal (less than 6 ns) while preserving a spatial resolution of under 1 μm.
Looking ahead, initial tests are aimed to be conducted at ATF using an existing prototype developed by CEA-Saclay (France), along with the corresponding readout system, by the end of 2024.
The presentation aims to provide an overview of the cBPM working principle and the progress
made towards the new model.

Apply for poster award
Yes

主著者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
共著者: Mr GIMENO MARTÍNEZ, Benito (IFIC (Universidad de Valencia - CSIC)); Ms FUSTERMARTÍNEZ, Nuria (IFIC (Universidad de Valencia - CSIC)); Mr ESPERANTE, Daniel (IFIC (Universidad
de Valencia - CSIC))
発表者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

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投稿 ID: 137

Overview on low mass scalars at ⋯タイプ: Oral presentation (remote)Overview on low mass scalars at e+e- facilities theory
2024 年 7 月 10 日水曜日 14:00 (20 分)
Many new physics scenarios render a low mass scalar candidate. I will briefly discuss the current
status of such models, and give an short overview on current studies for such models at Higgs
factories, including efforts within the ongoing ECFA effort.

Apply for poster award

主著者: ROBENS, Tania Natalie (Rudjer Boskovic Institute (HR))
発表者: ROBENS, Tania Natalie (Rudjer Boskovic Institute (HR))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 115 をご覧ください。

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投稿 ID: 140

Cavity Beam Position Monitor D ⋯タイプ: Oral presentation (in person)

Cavity Beam Position Monitor Development for the
ILC Main Linac
For future particle colliders, cavity Beam Position Monitors (cBPMs) have emerged as the optimal
solution for precisely measuring the beam position, crucial for guiding and stabilizing high-energy
beams with nanometer precision, thus enhancing luminosity at the interaction point. Resonant
BPMs operate under the principle of detection of specific field configurations (resonant modes)
induced by an off-centered beam within a cavity.
Development is underway for a cryostat accommodating a reentrant cBPM and a superconducting(SC) quadrupole for the ILC Main Linac. Initially, the cBPM and its associated electronics readout
system will undergo testing at ATF under ambient conditions and subsequently at STF for cryogenic temperature tests. Alignment of the SC quadrupole and cBPM centers within the cryostat
is crucial for precise beam position determination. Moreover, the BPM prototype must be capableof measuring the beam position on a bunch-by-bunch basis with temporal and spatial resolutionsof less than 6 ns (for STF) and 1 μm, respectively.
Currently, electromagnetic simulations are being conducted using the commercial software CST
Studio Suite to evaluate BPM performance and converge towards a system that meets the aforementioned requirements.
Additionally, a numerical method called BI-RME 3D is being employed to simulate the effect of awell-defined beam on the cBPM, providing estimates of voltages and waveforms observed at theoutput ports.
The selection of the read-out electronic system is critical to effectively down-convert the frequencyof the rapidly decaying signal (less than 6 ns) while preserving a spatial resolution of under 1 μm.
Looking ahead, initial tests are aimed to be conducted at ATF using an existing prototype developed by CEA-Saclay (France), along with the corresponding readout system, by the end of 2024.
The poster aims to provide an overview of the cBPM working principle and the progress madetowards the new model.

Apply for poster award
Yes

主著者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
発表者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 116 をご覧ください。

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投稿 ID: 142

Feasibility study on the search for ⋯タイプ: Oral presentation (remote)Feasibility study on the search for an exotic decay of
the Higgs boson into two light pseudoscalars in e+ecollider
2024 年 7 月 10 日水曜日 15:20 (20 分)
A feasibility study is conducted to search for an exotic decay of the Standard Model Higgs boson
decaying into a pair of light pseudoscalar bosons in the Cool Copper Collider (C3) experiment.
The Higgs boson is produced in association with a Z boson and the decay products consist of apair of b-quarks and tau leptons. The pseudoscalar bosons are probed over a mass range spanningfrom 20 to 60 GeV. A simplified algorithm is devised to reconstruct the tau lepton in its hadronic
decay mode. A limit on the branching ratio of the Higgs boson to a pair of light pseudoscalars ispresented assuming 1 fb-1 of data.

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主著者: MOHAMMADI, Abdollah (University of Wisconsin Madison (US)); NEE, CHENG-HSU(UW-Madison); DASU, Sridhara (UW-Madison)
発表者: NEE, CHENG-HSU (UW-Madison)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 117 をご覧ください。

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投稿 ID: 143

Update on plasma stability measu ⋯タイプ: Oral presentation (remote)

Update on plasma stability measurements of the
prototype plasma lens for positron matching2024 年 7 月 10 日水曜日 16:40 (20 分)
The quest for novel technologies in the ever-evolving landscape of scientific exploration has led tothe investigation of plasma lensing as a potential solution for optical matching devices at positronsources. This research becomes increasingly significant as the need for higher data output demands
innovative concepts to increase positron yield and therefore luminosity. Our initial experiments
revealed instabilities within the gas discharge. This talk will focus on the analysis of high temporal resolution measurements and the operation state of the prototype lens. Understanding andovercoming these challenges is pivotal for a future application of plasma lenses as an integral partof high performance positron sources.

Apply for poster award

主著者: HAMANN, Niclas (Uni Hamburg/DESY Hamburg)
共著者: LOISCH, Gregor (DESY); MOORTGAT-PICK, Gudrid; JONES, Harry (DESY Hamburg); OSTERHOFF, Jens (LBNL); LUDWIG, Kai (DESY Hamburg); FORMELA, Manuel
発表者: HAMANN, Niclas (Uni Hamburg/DESY Hamburg)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 118 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 144

Sustainability Efforts for Present ⋯タイプ: Oral presentation (in person)

Sustainability Efforts for Present and Future
Accelerator Facilities
2024 年 7 月 9 日火曜日 16:30 (15 分)
Increasing awareness and action on sustainability efforts for current and future accelerators has
led to notable progress in recent years. Higher priority has to be given to environmental sustainability including energy consumption, natural resource use and the environmental impact ofeffluents. Typically, increased performance - higher beam energies and intensities - of proposed
new facilities have come with increased electric power consumption. In this presentation on behalf of the ICFA Sustainability panel, we will discuss the most important areas of development forthe sustainability of accelerator-based research infrastructures in three categories - technologies,
concepts and general aspects.

Apply for poster award

主著者: NANNI, Emilio (SLAC National Accelerator Laboratory); ROSER, Thomas
発表者: NANNI, Emilio (SLAC National Accelerator Laboratory)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 119 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 145

New developments in the Whizar ⋯タイプ: Oral presentation (in person)

New developments in the Whizard event generator
2024 年 7 月 10 日水曜日 14:30 (20 分)
We give a status report on new developments within the WHIZARD event generator. Important new features comprise NLO electroweak automation (incl. extension to BSM processes like
SMEFT), loop-induced processes and new developments in the UFO interface. We highlight workin progress and further plans, such as the implementation of electroweak PDFs, photon radiation,
the exclusive top threshold and features for exotic new physics searches.

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REUTER, Jürgen (DESY Hamburg, Germany); BREDT, Pia (DESY Hamburg); Dr HÖFER,Marius (KIT); KILIAN, Wolfgang (University of Siegen); Mr KREHER, Nils (University of Siegen); Dr
LÖSCHNER, Maximilian (DESY); MEKALA, Krzysztof; OHL, thorsten; Mr STRIEGL, Tobias (Universityof Siegen); ZARNECKI, Aleksander Filip (University of Warsaw)

主著者:

発表者: REUTER, Jürgen (DESY Hamburg, Germany)
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 120 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 146

Heavy Neutral Leptons (HNL) at ⋯タイプ: Oral presentation (in person)

Heavy Neutral Leptons (HNL) at e+e- colliders theory
2024 年 7 月 10 日水曜日 11:00 (20 分)
In this talk I will review the models motivating searches for heavy neutral leptons at future e+ecolliders by linking their properties to different frameworks for neutrino mass generation andmixing. Several different regimes of prompt decays vs. long-lived HNLs vs. displaced tracks will
be discussed together with their experimental signatures.

Apply for poster award

主著者: REUTER, Jürgen (DESY Hamburg, Germany)
発表者: REUTER, Jürgen (DESY Hamburg, Germany)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 121 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 147

Consistent excesses in SUSY sear ⋯タイプ: Oral presentation (in person)

Consistent excesses in SUSY searches at the LHC:
Physics case for a Linear Collider
2024 年 7 月 9 日火曜日 9:45 (20 分)
Recently ATLAS and CMS published search results in the search for SUSY particle production
channel pp → χ̃02 χ̃±
1 in three different final states (3l, 2l and mono-jet). All searches in bothexperiments show consistent (small) excesses for mχ̃02 ≈ mχ̃± ≈ mχ̃01 + 20 GeV. We discuss these1
excesses and their implications for an e+ e− collider operating at an energy of 500 GeV.

Apply for poster award

主著者: Mr LIKA, Florian; MOORTGAT-PICK, Gudrid; SAHA, Ipsita (Kavli IPMU); Dr CHAKRABORTI,
Manimala; HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))
発表者: HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 122 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 148

BSM Triple Higgs couplings at the ⋯タイプ: Oral presentation (in person)

BSM Triple Higgs couplings at the ILC/CLIC
2024 年 7 月 10 日水曜日 16:00 (25 分)
To explain the baryon asymmetry in the universe a First Order Electroweak Phase Transition(FOEWPT) in the early universe is favored. This requires a BSM Higgs sector, which introduces
additional Higgs bosons as well as the corresponding additional trilinear Higgs couplings (THCs).
Taking the 2HDM as a concrete example, we discuss how such BSM THCs might be accessible at the
ILC/CLIC via di-Higgs production. We also briefly analyze the effect of higher-order corrections
to the THCs.

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主著者: ARCO, Francisco; MUEHLLEITNER, Margarete (Karlsruhe Institute of Technology); HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

発表者:

ARCO, Francisco; HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas(CSIC) (ES))

セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 123 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 150

High Power RF Testing of REBCO ⋯タイプ: Oral presentation (in person)

High Power RF Testing of REBCO Samples
2024 年 7 月 9 日火曜日 12:20 (15 分)
SRF materials such as niobium have been extremely useful for accelerator technology but require
low temperature operation ˜4K. The development of high temperature superconductors (HTS) is
promising due to their operating temperatures being closer to that of liquid nitrogen ˜77K. This
work hopes to determine the high-power RF performance of such materials at X-band (11.424 GHz).
We have tested two kinds of REBCO coatings, film deposited, and tapes on a copper substrate.
Testing was done in a hemispherical TE mode cavity due to its ability to maximize the magnetic
field on the sample and minimize electric field. We will report on conductivity vs temperature
measurements at low and high power, as well as preliminary tests of a TM01 cavity which could
utilize REBCO tapes. We have observed quenching within these REBCO samples and explain theevidence which implies that the quenching is most likely due to reaching the critical current anddue to average applied heat load for powers up to 1.6 kW.

Apply for poster award

主著者: DHAR, Ankur (SLAC National Accelerator Lab); Dr LE SAGE, Greg (SLAC National Accelerator Lab); SCHNEIDER, Mitchell
共著者: NANNI, Emilio (SLAC National Accelerator Laboratory); NOT SUPPLIED, JOFFRE GUTIERREZ ROYO; GOLM, Jessica (CERN); KRKOTIC, Patrick (CERN); CALATRONI, Sergio (CERN); WUENSCH, Walter (CERN)

発表者: DHAR, Ankur (SLAC National Accelerator Lab)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 124 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 151

HOM Detuning and Damping of ⋯タイプ: Oral presentation (in person)

HOM Detuning and Damping of C-Band Distributed
Coupling Structure2024 年 7 月 10 日水曜日 11:00 (20 分)
Standing wave structures typically operate at the pi-mode. Evidently the cell length of such astructure is half a wavelength. However, maximal shunt impedance per unit length was found to
be at a cell length of 3/8 wavelength, which corresponds to phase advance per cell of 135 degrees.
A distributed coupling structure at 5.712 GHz was developed based on the high efficient 135/degree phase advance design. For practical linear collider designs, the structure must include HOM
detuning and damping to mitigate long-range wakefields effects. Due to the high cutoff frequencyof the cell iris, effective detuning and damping of the dipole HOMs at frequencies up to 40 GHz is
required. In this presentation we will present HOM detuning and damping schemes to meet thelong-range wakefield requirements of a linear collider design.

Apply for poster award

主著者: LI, Zenghai (SLAC)
共著者: NANNI, Emilio (SLAC); SHUMAIL, Muhammad (SLAC); TAN, Wei-Hou (SLAC)
発表者: LI, Zenghai (SLAC)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 125 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 152

The SiD Digital ECal Based on M ⋯タイプ: Oral presentation (in person)

The SiD Digital ECal Based on Monolithic Active
Pixel Sensors
2024 年 7 月 10 日水曜日 16:20 (20 分)
Unprecedented precision is needed to address the Higgs physics with detectors at future e+ecolliders. Linear colliders offer low duty cycles and low backgrounds, that greatly assist achieving
these goals. The SiD Collaboration is developing an application of Monolithic Active Pixel Sensor(MAPS) technology for tracking and electromagnetic calorimetry (ECal). This technology offers
high granularity, thin sensors, fast responses (<nsec), and small dead areas. The low collider duty
cycle enables gaseous cooling for tracking and passive heat removal for calorimetry.
A MAPS prototyping effort (NAPA-p1) is led by SLAC in collaboration with CERN. This is aimed
at the linear collider tracking requirements, with complementary application to the ECal requirements. The device testing status is covered in an abstract submitted to the LCWS “Vertex, Tracking,
Timing” track. This calorimetry talk will briefly summarize that work, and concentrate on the ECal
design and system level considerations, as well as the ECal performance simulations.
Small pixels significantly improve shower separation in the ECal. Detailed simulation of ECal performance confirms previous results, indicating electromagnetic energy resolution based on digital
hit cluster counting provides better performance than the 13 mm2 pixels SiD TDR analog design.
Furthermore, two particle separation in the ECal is excellent down to the millimeter scale. Geant4
simulation results with optimized analysis based on machine learning has been studied to optimize
these expectations.

Apply for poster award

主著者: BRAU, Jim (University of Oregon (US))
共著者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); ROTA, Lorenzo (SLAC); BREIDENBACH, Martin (SLAC); VASSILEV, Mirella (Stanford U)
発表者: BRAU, Jim (University of Oregon (US))
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 126 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 153

Searches for Long-Lived Particles ⋯タイプ: Oral presentation (in person)

Searches for Long-Lived Particles at the Future
FCC-ee2024 年 7 月 10 日水曜日 10:01 (25 分)
The electron-positron stage of the Future Circular Collider, FCC-ee, is a frontier factory for Higgs,
top, electroweak, and flavour physics. It is designed to operate in a 100 km circular tunnel built
at CERN, and will serve as the first step towards ≥ 100 TeV proton-proton collisions. In addition
to an essential and unique Higgs program, it offers powerful opportunities to discover direct orindirect evidence of physics beyond the Standard Model. Direct searches for long-lived particles
at FCC-ee could be particularly fertile in the high-luminosity Z run and at other collision energies.
Several physics cases producing long-lived signatures at FCC-ee are highlighted in this contribution: heavy neutral leptons (HNLs), axion-like particles (ALPs), and exotic decays of the Higgs
boson.

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主著者: DE FILIPPIS, Nicola (Politecnico e INFN, Bari (IT))
発表者: DE FILIPPIS, Nicola (Politecnico e INFN, Bari (IT))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 127 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 154

Efforts toward a Green ILC in Japan
タイプ: Oral presentation (in person)

Efforts toward a Green ILC in Japan
2024 年 7 月 9 日火曜日 15:45 (15 分)
We are working on various activities to achieve sustainability of the ILC during its total life cycle. Japanese companies are making efforts to promote decarbonization during the production of
concrete, steel frame and rebar, which account for a large portion of CO2 emissions during construction. During operation, most of the CO2 emissions come from the electricity used by the
ILC, and efforts are being made to make the electricity in the area where the ILC candidate site is
located sustainable. Efforts are also underway to increase CO2 absorption in forests and coastal
areas, and to increase the long-term fixation of CO2 by incorporating more wood structures in local housing and large public buildings including ILC-related facilities. This report discusses these
efforts.

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主著者: YOSHIOKA, Masakazu (KEK)
発表者: YOSHIOKA, Masakazu (KEK)セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 128 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 155

Fragmentation functions at future ⋯タイプ: Oral presentation (in person)

Fragmentation functions at future lepton colliders
2024 年 7 月 9 日火曜日 14:00 (20 分)
Fragmentation functions (FFs) are essential non-perturbative inputs for precision calculations ofhadron production cross sections in high energy scattering from first principle of QCD. They areusually extracted from global analysis on world data from single inclusive hadron production at
lepton colliders, semi-inclusive DIS and pp collisions, e.g., as in recent NPC23 analysis. Future
lepton colliders operated at several center of mass energies will provide high-quality hadron multiplicity data from Z boson to W boson pair as well as Higgs boson production, and ensure an
accurate and precise determination of FFs based solely on data from lepton colliders. Projection
for several scenarios of future leptons colliders are considered and compared to FFs from mostrecent global determination.

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主著者: Prof. GAO, Jun (Shanghai JiaoTong University)
発表者: Prof. GAO, Jun (Shanghai JiaoTong University)
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 129 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 156

Test beam experiment of the large ⋯タイプ: Oral presentation (in person)

Test beam experiment of the large prototype of highgranularity scintillator calorimeter for future
electron-positron colliders -performance evaluation Future electron-positron colliders, including the International Linear Collider (ILC) and the Circular Electron Positron Collider (CEPC), are currently proposed for the precise measurement of
the Higgs boson. These projects require high-resolution scintillator calorimeters to achieve finegranularity. Our research focuses on the development of potential calorimeter options, namely
the Scintillator Electromagnetic Calorimeter (Sc-ECAL) and the Analog Hadron Calorimeter (AHCAL). These are sampling calorimeters that use plastic scintillator cells as detection layers, with absorber layers that generate showers and detection layers that capture particles from these showers
alternately arranged. To demonstrate the capabilities of these calorimeters, a prototype consistingof 32 layers of ECAL and 40 layers of HCAL, reflecting the actual device design, was constructed.
Between April and June 2023, a beam test using this integrated prototype was conducted at CERN.
The tests involved muons (10, 100, 120 GeV), electrons (0.5–250 GeV), and pions (1–350 GeV) toevaluate the energy response and resolution of ScECAL and AHCAL for electrons and pions. This
presentation will outline each detector and the beam test, and report the analysis results concerning the performance of the detectors during the beam tests.

Apply for poster award
Yes

主著者: MURATA, Tatsuki; TAKATSU, Taisei (ICEPP)
発表者: TAKATSU, Taisei (ICEPP)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 130 をご覧ください。

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Possible effects of the composite d ⋯投稿 ID: 157

タイプ: Poster (in person)

Possible effects of the composite dark matter at thelinear collider
2024 年 7 月 8 日月曜日 17:40 (20 分)
The existence of dark matter is currently one of the strong motivations for beyond the standard
model. We consider the model of the composite dark matter. Our model assumes that meson-likedark matter (call it dark mesons) is a bounded state of dark quark (ψ) and anti-dark quark (ψ̄) pairs,
where ψ and ψ̄ have a confining force at work. Confining force is based on the QCD-like SU (N )hidden color gauge theory. This dark matter sector connects to the Standard model via a real singlet
scalar particle. The SU (N ) hidden color gauge sector in the dynamical chiral symmetry breaking
generates Nambu-Goldstone bosons (π̃ dark meson) and massive composite scalar bosons (σ̃ darkmeson) simultaneously. A real singlet scalar particle gives the current mass for the dark quark.
The current mass for dark quark breaks explicitly chiral symmetry. Nambu-Goldstone bosons are
massive, meaning they are dark matter candidates. We use an effective theory for dark matterinteractions in the framework of the linear sigma model. In the dark mesons of SU (N ) hidden
color, the chiral partner of the π̃ meson is the σ̃ meson (iso scalar-scalar). σ̃ is also a candidate as
dark matter. We will investigate the missing energy for the final state of our model at HL-LHC
and the future linear collider.

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主著者: MURAKAMI, Yuko (Hiroshima University); Dr SEKIGUCHI, Motoo (Kokushikan University); Dr WADA, Hiroaki (Kokushikan University); Dr WAKAYAMA, Masayuki (Chiba Institute ofTechnology)
発表者: MURAKAMI, Yuko (Hiroshima University)
セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 131 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 158

Classifying importance regions in ⋯タイプ: Oral presentation (in person)

Classifying importance regions in Monte Carlosimulations with machine learning
2024 年 7 月 10 日水曜日 11:00 (20 分)
In this work, we attempt to classify regions in a multidimensional parameter space according totheir importance during a simulation. Considering that the parameter space could be high dimensional and the simulated process could result in arbitrary shapes, we involve a neural networkin the process of guessing such shapes without running the full simulation for every point. We
illustrate the process with a few examples, including scattering processes with several outgoingparticles and compare with other known techniques for Monte Carlo simulations.

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主著者: Dr BAN, Kayoung (Korea Institute for Advanced Study); Prof. PARK, Myeonghun (Seoultech); RAMOS, Raymundo (Korea Institute for Advanced Study)
発表者: RAMOS, Raymundo (Korea Institute for Advanced Study)
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 132 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 159

Third family quark mass hierarch ⋯タイプ: Oral presentation (in person)

Third family quark mass hierarchy and FCNC in theuniversal seesaw model2024 年 7 月 9 日火曜日 15:00 (20 分)
We study the quark sector of the universal seesaw model with SU (2)L ×SU (2)R ×U (1)Y ′ gauge
symmetry in the massless limit of the two lightest quark families. This model aims to explain
the mass hierarchy of the third family quark by introducing a vector-like quark partner for eachquark. In addition to the Standard Model Higgs doublet, we also introduce one right-handed Higgs
doublet. In this presentation, we show the Z, Z’, h, H FCNC for the third family quark (t, b) andthe heavy partner (t’, b’).

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主著者: PANULUH, Albertus (Hiroshima University)
共著者: MOROZUMI, Takuya (Hiroshima University)
発表者: PANULUH, Albertus (Hiroshima University)
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 133 をご覧ください。

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WIMP search at future lepton col ⋯投稿 ID: 160

タイプ: Poster (in person)

WIMP search at future lepton collider
2024 年 7 月 8 日月曜日 17:40 (20 分)
Minimal dark matter is one of the most motivated dark matter candidates, and many analyses atcollider experiments for this model have been discussed. In our work, we considered the search
for minimal dark matter at future high-energy lepton collider experiments. We found that theindirect search, which measures the quantum correction to the muon elastic scattering, is much
more sensitive than the direct search. We also discussed the usefulness of the polarised muon
beam in this search.

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Yes

主著者: NIKI, Atsuya (University of Tokyo); Dr FUKUDA, Hajime (University of Tokyo); Mr WEI,
Shang-Fu (University of Tokyo); Prof. MOROI, Takeo (University of Tokyo)
発表者: NIKI, Atsuya (University of Tokyo)
セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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投稿 ID: 161

Higher-order effects in the triline ⋯タイプ: Oral presentation (in person)

Higher-order effects in the trilinear Higgs coupling
for future collider experiments
2024 年 7 月 10 日水曜日 11:55 (15 分)
Although the Higgs boson has been discovered, the couplings with the Higgs boson have room for
deviation from the Standard Model (SM) prediction. Each extended Higgs model is characterized
by its Higgs potential. Nearly aligned models where the shape of the Higgs potential is described by
one classical field include the classical scale invariance model (CSI), the pseudo-Nambu-Goldstone
model, the tadpole-induced model, and so on. This classification enables us to scrutinize numerous
numbers of models efficiently by measuring the trilinear Higgs coupling with high precision. In
this study, we calculate the trilinear Higgs couplings including loop contributions from the top
quark and new particles for various Higgs potentials, and investigate the feasibility of future collider experiments. For several benchmark parameters, we show that the High-luminosity LHC
and the ILC are capable of discriminating several extended Higgs models. We present the resultof work in progress.

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主著者: OHZAWA, Shuhei (University of Toyama)
Dr KAKIZAKI, Mitsuru (University of Toyama); Prof. HIROSHIMA, Nagisa (Yokohama
National University)

共著者:

発表者: OHZAWA, Shuhei (University of Toyama)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 162

Application of Particle Transform ⋯タイプ: Oral presentation (remote)Application of Particle Transformer to quark flavor
tagging in the ILC project2024 年 7 月 9 日火曜日 14:40 (20 分)
International Linear Collider (ILC) is a next-generation e+e- linear collider to explore BeyondStandard-Models by precise measurements of Higgs bosons. Jet flavor tagging plays a vital rolein the ILC project by identification of H->bb,cc,gg,ss to measure Higgs coupling constants and of
HH->bbbb and bbWW which are the main channels to measure the Higgs self-coupling constant.
Jet Flavor Tagging relies on a large amount of jet information such as particle momenta, energies,
and impact parameters, obtained from trajectories of particles within a jet. Since jet flavor tagging
is a classification task based on massive amounts of information, machine learning techniques
have been utilized for faster and more efficient analysis for the last several decades.
In recent years, a novel machine learning architecture from natural language processing called
Transformer has been developed, and it has been showing state-of-the-art performances in multiple fields. Particle Transformer (ParT) is a software that applies the Transformer architecture tojet analysis, including jet flavor tagging. In this study, we apply ParT to ILD full simulation data
to improve the efficiency of jet flavor tagging.
Our research focused on evaluating the performance of ParT compared to the previously usedflavor tagging software, LCFIPlus, and optimizing network architectures and input parameters.
Specifically, we verified performance stability through multiple training runs, assessed the performance when independently embedding charged particles and neutral particles, and evaluated thedependence on data size and number of learnable parameters. We will also report on the status of
performance study of strange tagging using ParT with ILD full simulation, which can be applied
on analysis of Higgs-strange coupling.

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主著者: TAGAMI, Risako (University of Tokyo (JP))
共著者: ISHINO, Masaya (University of Tokyo (JP)); SUEHARA, Taikan (ICEPP, The University ofTokyo)

発表者: TAGAMI, Risako (University of Tokyo (JP))
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

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投稿 ID: 163

Development of particle flow alg ⋯タイプ: Oral presentation (in person)

Development of particle flow algorithm with GNN
for Higgs factories
2024 年 7 月 10 日水曜日 11:20 (20 分)
Particle flow plays an important role in precise measurement of Higgs bosons at future lepton colliders such as ILC and FCCee. Various detector concepts are designed to maximize the effect ofparticle flow to be able to separate each particle s inside jets and improve the resolutions. For the
standard particle flow algorithm, PandoraPFA is used for long in ILC studies. It is a multi-step reconstruction algorithm consisting of clustering, track-cluster association, and various refinement
processes. We have studied machine learned particle flow model using Graph Neural Network
based algorithm developed in the context of CMS HGCAL clustering. This model utilizes GravNet
as GNN architecture and Object Condensation loss function for training. Since the HGCAL algorithm only performs clustering at the calorimeter, we developed track-cluster matching featureinside the network to realize full PFA. Details of initial implementation of the track-cluster matching algorithm as well as performance evaluation with multiple tau events and jet vents will beshown. We also report the comparison result between computational performance of the machinelearned algorithm and the PandoraPFA.

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Yes

主著者: SUEHARA, Taikan (ICEPP, The University of Tokyo); MURATA, Tatsuki
発表者: MURATA, Tatsuki
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

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投稿 ID: 164

Status of high granular scintillator ⋯タイプ: Oral presentation (in person)

Status of high granular scintillator calorimeter for
future electron positron colliders
2024 年 7 月 10 日水曜日 9:00 (30 分)
Several future Higgs factories are planned for the precision Higgs physics to search for the newphysics. The highly granular calorimeters play a crucial role on the precision Higgs measurement.
The highly granular Sc-ECAL is based on a scintillator strip readout by a SiPM to realize the 5 mm
× 5 mm cell size by aligning the strips orthogonally in x-y configuration. In order to demonstrate
the performance of the Sc-ECAL and the scalability to the full-scale detector, the technologicalprototype has been developed with full 32 layers. In 2022 and 2023, the combined beam test of the
Sc-ECAL and the CEPC-AHCAL, which is the scintillator based HCAL designed for the CircularElectron Positron Collider, is conducted at CERN SPS and PS beam lines to demonstrate the fullcalorimeter performance and the per-channel calibrations and performance demonstration are
successfully done. This presentation describes the status the Sc-ECAL analysis of the combined
beam test.

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主著者: TAKATSU, Taisei (ICEPP); MURATA, Tatsuki
発表者: MURATA, Tatsuki
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 138 をご覧ください。

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投稿 ID: 165

Collider phenomenology of the ⋯タイプ: Oral presentation (in person)

Collider phenomenology of the TeV-scale modelwith a common origin of neutrino mass, dark matterand baryon asymmetry2024 年 7 月 10 日水曜日 12:00 (20 分)
The origins of tiny neutrino mass, dark matter and baryon asymmetry of the Universe remain
big mysteries in particle physics. To explain all these phenomena, a new physics model with a
Higgs sector extended at the TeV scale was proposed by Aoki, Kanemura and Seto. However,
CPV phases were neglected for simplicity, and the baryon number production via electroweak
baryogenesis had not been evaluated. We have revisited this model including CPV phases and haveinvestigated several phenomena including neutrino mass generation, dark matter relic abundanceand electroweak baryogenesis. Future high-energy linear colliders are expected to play a crucialrole in probing this model. In this talk, we will present some benchmark scenarios of the model
where neutrino mass, dark matter and the baryon asymmetry can be simultaneously explained
while satisfying all the theoretical and experimental constraints and discuss their predictions infuture linear collider experiments.

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主著者: AOKI, Mayumi; ENOMOTO, Kazuki (Korea Advanced Institute of Science and Technology); KANEMURA, Shinya (Osaka University); TANIGUCHI, Sora (Osaka University)
発表者: ENOMOTO, Kazuki (Korea Advanced Institute of Science and Technology)
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 139 をご覧ください。

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投稿 ID: 166

Development of next-generation ⋯タイプ: Oral presentation (in person)

Development of next-generation calorimeter
combining high-granularity and dual-readoutcalorimeter with psec-timing
2024 年 7 月 9 日火曜日 9:30 (30 分)
Several future collider experiments are proposed for precise measurement of Higgs that requirecalorimeter technology with excellent jet energy resolution. To fulfill the requirement, this study
aims to develop next-generation calorimetry that combines “particle flow calorimetry” and “dualreadout calorimetry”. For the aspect of particle flow calorimetry, highly segmented readouts are
implemented in the active layers. At the same time, for the aspect of dual-readout calorimetry,
two different kinds of signal generation: scintillation and Cherenkov radiation are used to improveenergy reconstruction for hadrons. This study also turns the spotlight on the timing measurementof the calorimeter. It is to establish a detector technology of picosecond-level time resolution fora large detection area and to investigate the impact of timing information as additional input forparticle flow or cut for background reduction. As a result, the proposed calorimetry precisely measures not only energy but also position and timing and opens access to the “5D calorimeter”.
To realize such a concept, a Cherenkov detector with highly segmented readouts and picosecondlevel timing resolution that can cover a large area is required. Cherenkov light generated bycharged particles is converted to photoelectrons by a photocathode and subsequently amplified
by the Resistive Plate Chamber (RPC) is one candidate for such a detector. Notably, the amplification layer utilizes an RPC with a Diamond-like Carbon (DLC) electrode, providing high-rate
capability overcoming the conventional drawbacks of RPCs.
This presentation describes the demonstration of the detector concept of the Cherenkov detector.

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Yes

主著者: LI, Weiyuan (The University of Tokyo)
共著者: GATTO, Corrado; JEANS, Daniel; HAHN, Eileen; OGAWA, Hiroyasu; MATSUOKA, Kodai; LOS, Sergey; SUEHARA, Taikan (ICEPP, The University of Tokyo); KAMIYAMA, Taiki (Universityof Tokyo); TAKESHITA, Tohru; Dr OOTANI, Wataru (ICEPP, Univ. of Tokyo)
発表者: LI, Weiyuan (The University of Tokyo)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 140 をご覧ください。

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投稿 ID: 167

Double Higgs production in com ⋯タイプ: Oral presentation (in person)

Double Higgs production in composite two Higgs
doublet model2024 年 7 月 10 日水曜日 17:00 (15 分)
The precise measurement of the 125 GeV Higgs boson is one of the powerful ways to probe newphysics. In particular, it is known that a large deviation from the SM predictions can appear in the
di-Higgs production process e.g., via new physics effects of the triple Higgs boson coupling.
In this talk, we discuss the theoretical behavior of the di-Higgs production cross section in thecomposite two Higgs doublet model.
We then discuss how new particles of the model (additional Higgs bosons and heavy top quark
partners) affect this process.

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CURTIS, Stefania De; ROSE, Luigi Delle; EGLE, Felix; Prof. MÜHLLEITNER, Milada
Margarete; Prof. MORETTI, Stefano; SAKURAI, Kodai (Tohoku University)

主著者:

発表者: SAKURAI, Kodai (Tohoku University)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 168

The new Sherpa 3.0 event generator
タイプ: Oral presentation (in person)

The new Sherpa 3.0 event generator
2024 年 7 月 10 日水曜日 14:00 (20 分)
Accurate and fully differential predictions are crucial inputs for the precise experimental analyses
at linear colliders and are typically provided by parton shower Monte Carlo programs. The event
generator Sherpa with its focus on the inclusion of higher-order EW and QCD effects is available
in a new version 3.0 this year and we will summarise its new features in particular where they
relate to linear colliders.

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主著者:

PRICE, Alan (Jagiellonian University); SIEGERT, Frank (Technische Universitaet Dresden(DE))

発表者: SIEGERT, Frank (Technische Universitaet Dresden (DE))
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 142 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 169

The 95 GeV Higgs at e+ e− colliders
タイプ: Oral presentation (in person)

The 95 GeV Higgs at e+e− colliders
2024 年 7 月 10 日水曜日 14:20 (20 分)
Several searches for Higgs bosons below 125 GeV show an excess around mϕ = 95.4 GeV. These
include in particular gg → ϕ → γγ at CMS and ATLAS and e+ e− → Z ∗ → Z(ϕ → bb̄) at LEP.
We discuss BSM Higgs sectors that can accommodate these excesses. We demonstrate that such alight Higgs boson can be analyzed in detail at e+ e− colliders.

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主著者: WEIGLEIN, Georg Ralf (Deutsches Elektronen-Synchrotron (DE)); HEINEMEYER, Sven(Consejo Superior de Investigaciones Cientificas (CSIC) (ES)); Dr BIEKOETTER, Thomas (KIT)WEIGLEIN, Georg Ralf (Deutsches Elektronen-Synchrotron (DE)); HEINEMEYER, Sven(Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

発表者:

セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 143 をご覧ください。

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投稿 ID: 170

Longitudinally-split side-coupled ⋯タイプ: Oral presentation (in person)

Longitudinally-split side-coupled
high-shunt-impedance C-band structure fabricatedin two halves
2024 年 7 月 10 日水曜日 17:00 (20 分)
Side-coupled structures operated with π/2 mode have been widely used particularly for compact
linacs. The structure has various advantages; however, there are some difficulties in fabrication
due to many complicated parts to be bonded in the conventional fabrication method. On the other
hand, longitudinally-split structures are easy to fabricate due to the small number of parts (twohalves or four quadrants). In recent years, in collaboration with Mitsubishi Heavy Industries, wehave been developing longitudinally-split side-coupled C-band structure fabricated in two halves
with a high shunt impedance based on our successful experience on the quadrant-type X-band
CLIC prototype structure development. We report the status and results of this project.

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主著者: TETSUO, Abe (KEK)
発表者: TETSUO, Abe (KEK)セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 144 をご覧ください。

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投稿 ID: 171

AAA activities in Japan
タイプ: Oral presentation (in person)

AAA activities in Japan
2024 年 7 月 9 日火曜日 13:20 (15 分)
The Advanced Accelerator Association Promoting Science & Technology (AAA) is a general incorporated association. The objective of the association shall strive in facilitating the industrygovernment-academia collaboration. It seeks the industrial applications of advanced acceleratorsand technologies with the International Linear Collider (ILC) as its core project, as well as thescientific findings in the field of particle physics. In this presentation, we will give an overview
of the latest developments of activities in the Outreach, Technology Study, and the Sustainability
Study groups in AAA.

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主著者: JINNOUCHI, Osamu (Tokyo Institute of Technology (JP))
発表者: JINNOUCHI, Osamu (Tokyo Institute of Technology (JP))
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 145 をご覧ください。

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投稿 ID: 172

Longitudinal structure optimizati ⋯タイプ: Oral presentation (in person)

Longitudinal structure optimization for the highdensity electromagnetic calorimeter
2024 年 7 月 10 日水曜日 16:00 (20 分)
High density electromagnetic sandwich calorimeters with high readout granularity are considered
for many future collider and fix-targer experiments. Optimization of the calorimeter structure fromthe point of view of the electromagnetic shower energy, position and direction measurement is oneof the key aspects of the design. However, mostly uniform sampling structures were considered
so far. We developed a semi-analytical approach to study calorimeter performance based on thedetailed Geant 4 simulation, which also allows to compare the expected performance for different
non-uniform longitudinal readout structures. This methodology enables us to find out the best
calorimeter instrumentation pattern upon a specified usage scenario or optimization goal.

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主著者: ZARNECKI, Aleksander Filip (University of Warsaw)
共著者: BORYSOV, Oleksandr (Deutsches Elektronen-Synchrotron (DE)); HUANG, Shan (Tel Aviv
University - LUXE); ZEMBACZYNSKI, Kamil (Faculty of Physics, University of Warsaw)
発表者: ZARNECKI, Aleksander Filip (University of Warsaw)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 146 をご覧ください。

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投稿 ID: 173

DuTiP Vertex Detector for Belle II ⋯タイプ: Oral presentation (in person)

DuTiP Vertex Detector for Belle II Upgrade and ILC
2024 年 7 月 9 日火曜日 11:20 (20 分)
Belle II ugpgrade is expected around 2028 to mitigate the high background induced by electron andpositron beams. We have invented a new pixel detector concept named Dual Timer Pixel (DuTiP)
for the vertex detector upgrade. This pixel detector concept can be also used for the layer 7 and
8 of the ILD vertex detector. The first prototype was fabricated with lapis semiconductor 200 nm
FD-SOI technology and characterization is ongoing. We will present the status and prospects ofthe development.

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主著者: ISHIKAWA, Akimasa (KEK)
発表者: ISHIKAWA, Akimasa (KEK)セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

ページ 147 をご覧ください。

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投稿 ID: 174

Impact of quark flavor violating S ⋯タイプ: Oral presentation (remote)

Impact of quark flavor violating SUSY on h(125)decays at future lepton colliders
2024 年 7 月 10 日水曜日 11:20 (20 分)
We study the CP-even neutral Higgs boson decays h -> c \bar{c}, b \bar{b},b \bar{s}, \gamma \gamma, g g in the Minimal Supersymmetric Standard Model (MSSM)
with general quark flavor violation (QFV) due to squark generation mixings,
identifying the h as the Higgs boson with a mass of 125 GeV. We compute the widthsof the h decays to c \bar c, b \bar b, b \bar s (s \bar b) at full one-loop level.
For the h decays to \gamma \gamma and g g we compute the widths at NLO QCD level.
For the first time, we perform a systematic MSSM parameter scan for these widths
respecting all the relevant theoretical and experimental constraints, such as thosefrom B-meson data, and the 125 GeV Higgs boson data from recent LHC experiments,
as well as the limits on Supersymmetric (SUSY) particle masses from the LHC experiments.
We also take into account the expected SUSY particle mass limits from the future HL-LHC
experiment. In strong contrast to the usual studies in the MSSM with Minimal Flavor
Violation (MFV), we find that the deviations of these MSSM decay widths from theStandard Model (SM) values can be quite sizable and that there are significant
correlations among these deviations. Furthermore, we point out that the experimental
measurement uncertainties as well as the MSSM prediction uncertainties tend to cancelout significantly in the width ratios, making the measurement of these width ratios
a very sensitive probe of virtual SUSY loop effects in these h decays at future lepton
colliders. All of these sizable deviations in the h decays are mainly due to large
scharm-stop mixing and large sstrange-sbottom mixing. Such sizable deviations fromthe SM can be observed at high signal significance in future lepton colliders suchas ILC, CLIC, CEPC, FCC-ee and muon collider even after the failure of SUSY particle
discovery at the HL-LHC. In case the deviation pattern shown here is really observedat the lepton colliders, then it would strongly suggest the discovery of QFV SUSY
(the MSSM with general QFV).
References:
Phys. Rev. D 91 (2015) 015007; JHEP 1606 (2016) 143; IJMP A34 (2019) 1950120;
PoS(ICHEP2022) 536; PoS(EPS-HEP2023) 487.

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主著者: Prof. HIDAKA, Keisho (Tokyo Gakugei University); Dr EBERL, Helmut (HEPHY Vienna); Dr
GININA, Elena (HEPHY Vienna)
発表者: Prof. HIDAKA, Keisho (Tokyo Gakugei University)
セッション分類: Higgs, Electroweak

October 3, 2024

ページ 148 をご覧ください。

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Impact of quark flavor violating S ⋯トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 149 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 175

Spin-polarized electron sources f ⋯タイプ: Oral presentation (remote)Spin-polarized electron sources for future linear
colliders2024 年 7 月 10 日水曜日 9:40 (20 分)
Spin-polarized electron photoelectron sources are a critical component of multiple future collider
designs. The present state-of-the-art polarized electron photocathode material, negative electron
affinity gallium arsenide, has remarkable performance: it possesses high quantum efficiency andcan emit beams with a spin polarization exceeding 90% under the right conditions. However,its extreme vacuum sensitivity limits its application to guns with extreme high vacuum quality;
this has the effect of constraining the peak source brightness. This vacuum sensitivity also limits
the average current of the source. Both of these factors can constrain collider luminosity. In thispresentation, I will describe alternatives to GaAs photocathodes such as GaN and alkali antimonide
photocathodes, which have been demonstrated to emit spin-polarized electrons and have beenshown to be much more robust to vacuum poisoning and high average current delivery. After
describing these materials, I will discuss the prospects and potential performance of their use inhigh-field RF electron sources with high peak brightness.

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主著者: MAXSON, Jared (Cornell University)
発表者: MAXSON, Jared (Cornell University)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 150 をご覧ください。

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投稿 ID: 176

Hydrodynamic Simulations of an ⋯タイプ: Oral presentation (remote)Hydrodynamic Simulations of an Argon-filled
Tapered Plasma Lens for Optical Matching at the ILC
e+ Source
2024 年 7 月 10 日水曜日 16:20 (20 分)
The beam produced in the target of the ILC positron source is highly divergent and therefore
requires immediate optical matching, conventionally performed by some kind of solenoid arrangement.
Recently, the use of a plasma lens has been considered as an alternative with hopes to increase
number of positrons available for the downstream acceleration. Previous simulations have indicated that a plasma lens design with linear tapering is optimal for the ILC positron source.
In the latest hydrodynamic simulations, argon is studied as the plasma medium for the aforementioned plasma lens design. During these studies, argon’s various reaction paths are systematicallyexamined to understand their impact on the discharge process. This is followed by a comparison
with hydrogen.

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主著者: FORMELA, Manuel (Universität Hamburg/DESY); MEWES, Mathis (DESY); BOYLE, Gregory(James Cook University)
共著者: HAMANN, Niclas (Universität Hamburg/DESY); MOORTGAT-PICK, Gudrid (Universität
Hamburg/DESY); LOISCH, Gregor (DESY); OSTERHOFF, Jens (Lawrence Berkeley National Laborator); THÉVENET, Maxence (DESY)
発表者: FORMELA, Manuel (Universität Hamburg/DESY)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 151 をご覧ください。

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Laser and plasma accelerator rese ⋯投稿 ID: 177

タイプ: Poster (in person)

Laser and plasma accelerator research for highenergy physics at the BELLA Center
2024 年 7 月 8 日月曜日 17:40 (20 分)
The BELLA Center has been pursuing laser and laser-plasma accelerator (LPA) research for highenergy physics. One of the ultimate goals is to provide a building block for future linear colliders.
At the flagship 1-Hz 1-PW laser facility, the development of a 10-GeV class LPA module is ongoing,
and such modules in series are envisioned as the path to a high energy collider at TeV energies
and beyond. To achieve the desired luminosities required for such a collider, high repetition-rate(tens of kHz) laser sources are needed. To meet these requirements, the BELLA Center is pursuinga promising technology based on the coherent combining of fiber lasers. In this presentation, thecurrent status of those researches are discussed.

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主著者: NAKAMURA, Kei (Lawrence Berkeley National Laboratory)
共著者: Dr PICKSLEY, Alexander (Lawrence Berkeley National Laboratory); Dr GONSALVES, Anthony (Lawrence Berkeley National Laboratory); GEDDES, Cameron (Lawrence Berkeley National Laboratory); SCHROEDER, Carl; ESAREY, Eric (LBNL); OSTERHOFF, Jens (Lawrence Berkeley National
Laborator); Dr VAN TILBORG, Jeroen (Lawrence Berkeley National Laboratory); Dr ZHOU, Tong
(Lawrence Berkeley National Laboratory)

発表者: NAKAMURA, Kei (Lawrence Berkeley National Laboratory)
セッション分類: Posters
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 152 をご覧ください。

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投稿 ID: 178

RF breakdown studies at nanosec ⋯タイプ: Oral presentation (in person)

RF breakdown studies at nanosecond timescales
using structure wakefield acceleration
2024 年 7 月 10 日水曜日 16:20 (20 分)
High-energy particle accelerators are crucial to the next big discovery in particle physics. To reduce the size and cost of particle accelerators, increasing the accelerating gradient (energy gain perunit length for the particle beam) is of critical importance. Advanced accelerator concepts (AACs)
hold the promise of revolutionary future particle colliders with dramatically higher gradients thanwhat conventional accelerator technologies allow. One advanced concept, structure wakefield acceleration (SWFA), aims to raise the gradient and the efficiency by confining the microwave energy
in a short and intense pulse. The SWFA concept has inspired a new approach to generate nanosecond RF pulses with a high peak power (on the order of a few hundred megawatts). By using theshort RF pulses to study RF breakdown on the nanosecond time scale, we have demonstrated thatthe short pulse length could potentially mitigate the impact of RF breakdown, and the beam-driven
short-pulse acceleration technique could enable a new class of compact accelerators.

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主著者: LU, Xueying (Northern Illinois University / Argonne National Lab)
発表者: LU, Xueying (Northern Illinois University / Argonne National Lab)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 153 をご覧ください。

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投稿 ID: 179

Advanced structures R&D for str ⋯タイプ: Oral presentation (in person)

Advanced structures R&D for structure wakefield
acceleration at the Argonne Wakefield Accelerator
2024 年 7 月 10 日水曜日 14:30 (15 分)
Research and development on novel structures is at the core of advancing structure wakefield acceleration (SWFA), and is critical to future AAC-based linear colliders. In this talk, I will present recent
progress on the R&D of advanced radiofrequency (RF) structures for Structure Wakefield Acceleration, metamaterial structures, and sub-terahertz structures. The experiments were performedat the Argonne Wakefield Accelerator (AWA) facility, where we capitalized on the capability ofgenerating shaped-electron bunches to improve SWFA performance.

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主著者: LU, Xueying (Northern Illinois University / Argonne National Lab)
発表者: LU, Xueying (Northern Illinois University / Argonne National Lab)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 154 をご覧ください。

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投稿 ID: 180

The Quest of Building a TPC Field ⋯タイプ: Oral presentation (in person)

The Quest of Building a TPC Field Cage
2024 年 7 月 9 日火曜日 12:00 (20 分)
For ILD, one of the detector concepts for the proposed International Linear Collider, a time projection chamber (TPC) is foreseen as the central tracking detector. The R&D effort within the LCTPC
collaboration has been centred around a common infrastructure setup operated at the DESY II Test
Beam Facility. This setup includes a large field cage as test bed for the different readout technologies to be studied under comparable conditions. A second iteration of this field cage has recently
been constructed to improve on the shortcomings noticed with its predecessor. The construction
was repeatedly delayed and interrupted due to the COVID-19 pandemic but these delays yielded
insights that may not otherwise have been observed during an ordinary course of operations.
Methods and findings from the build process will be reported.

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主著者: SCHAEFER, Oliver (DESY Hamburg)
発表者: SCHAEFER, Oliver (DESY Hamburg)
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

ページ 155 をご覧ください。

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投稿 ID: 181

Decoding Higgs Boson Branching ⋯タイプ: Oral presentation (remote)

Decoding Higgs Boson Branching Ratios from Event
Shape Variables
2024 年 7 月 9 日火曜日 10:10 (20 分)
In this talk I will discuss a novel strategy [1] for the simultaneous measurement of Higgs-boson
branching ratios into gluons and light quarks at a future lepton collider operating in the Higgsfactory mode. The method is based on template fits to global event-shape observables, and inparticular fractional energy correlations, thereby exploiting differences in the QCD radiation patterns of quarks and gluons. This isorthogonal to measurements based on traditional tagging methods based mainly on displaced vertices and allows for an extraction of limits on both Higgs boson to gluon- and light quark branchingratios separately. I will also comment on state of the art calculations for the relevant observables
based on [2].
[1] Eur.Phys.J.C 84 (2024) 1, 83[2] arXiv:2403.06929

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主著者: REICHELT, Daniel
発表者: REICHELT, Daniel
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 156 をご覧ください。

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投稿 ID: 182

The Alaric parton shower algorithm
タイプ: Oral presentation (remote)

The Alaric parton shower algorithm2024 年 7 月 10 日水曜日 15:00 (20 分)
Parton showers are important tools in the event generation chain for future collider. Recently,
their formally achieved accuracy has been under extended scrutiny. In this talk I will present a
novel take on dipole parton showers [1], resulting in the design of a new parton shower called
Alaric that is implemented in the Sherpa framework. I will discuss its resummation properties andshow analytic and numerical proofs of its NLL accuracy. I will discuss the latest developments, see[2], and their implications for final state evolution.
[1] JHEP 10 (2023) 091[2] arXiv:2404.14360

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主著者: REICHELT, Daniel
発表者: REICHELT, Daniel
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 157 をご覧ください。

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投稿 ID: 183

Searching for heavy neutral lepto ⋯タイプ: Oral presentation (in person)

Searching for heavy neutral leptons through exotic
Higgs decays at the ILC
2024 年 7 月 10 日水曜日 11:40 (20 分)
In this study we investigate the feasibility of detecting heavy neutral leptons (Nd ) through exotic
Higgs decays at the proposed International Linear Collider (ILC), specifically in the channel ofe+ e− → qq H with H → νNd → ν lW → νl qq. Analyses based on full detector simulations of
the ILD are performed at the center-of-mass energy of 250 GeV for two different beam polarization
schemes with a total integrated luminosity of 2 ab−1 . A range of heavy neutral lepton masses
between the Z boson and Higgs boson masses are studied. The 2σ significance reach for thejoint branching ratio of BR(H → νNd ) · BR(Nd → lW ) is about 0.1\%, nearly independent of
the heavy neutral lepton masses, while the 5σ discovery is possible at a branching ratio of 0.3%.
Interpreting these results in terms of constraints on the mixing parameters |εid |2 between SM
neutrinos and the heavy neutral lepton, it is expected to have a factor of 10 improvement fromcurrent constraints.

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主著者: TIAN, Junping (University of Tokyo); ISHINO, Masaya (University of Tokyo (JP)); THOR,
Simon

発表者: THOR, Simon
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 158 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 184

Physics Considerations for 10-30 ⋯タイプ: Oral presentation (in person)

Physics Considerations for 10-30 TeV e+e-, γγ, andμ+μ- Colliders
2024 年 7 月 9 日火曜日 9:20 (20 分)
After the program of Higgs boson physics at a linear collider is completed, we expect that thelong, straight tunnel can be used with advanced acceleration methods, such as plasma wakefield,
to create a higher-energy collider in the 10’s of TeV CM region. This might be an e+e- or a γγ
collider. (Circular) muon colliders are also discussed for this energy regime. I will discuss thephysics goals of these machines, the luminosity requirements, and the trade-offs among the μ+μ-,
e+e-, and γγ options.

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主著者: PESKIN, Michael
発表者: PESKIN, Michael
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 159 をご覧ください。

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A CP violating top-Higgs coupling ⋯投稿 ID: 185

タイプ: Poster (in person)

A CP violating top-Higgs coupling with SMEFT in
the Feynman-Diagram gauge
2024 年 7 月 8 日月曜日 17:40 (20 分)
We calculate the cross section for the process µ− µ+ → νµ ν̄µ tt̄H with complex top Yukawa coupling, which can be obtained by adding a gauge invariant dimension-6 operator to the Standard
Model (SM) Lagrangian. The Feynman-Diagram (FD) gauge and the unitary (U) gauge amplitudes
give exactly the same cross section, and subtle gauge theory cancellation among diagrams in the
U gauge at high energies is absent in the FD gauge, as has been observed for various SM processes.
In addition, we find that the total cross sections at high energies are dominated by a single, or aset of non-vanishing Feynman amplitudes with the higher dimensional vertices in the FD gauge.

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主著者: HAGIWARA, Kaoru; KANZAKI, Junichi; MATTELAER, Olivier; MAWATARI, Kentarou; ZHENG,
Ya-Juan

発表者: ZHENG, Ya-Juan
セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 160 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 186

A Wakefield Resilient, High Shunt ⋯タイプ: Oral presentation (in person)

A Wakefield Resilient, High Shunt Impedance
Accelerating Structure for the Cold Copper Collider
2024 年 7 月 10 日水曜日 11:20 (20 分)
The initial proposed design of the Cold Copper Collider (C3) is based on a distributed coupling
accelerating (DCA) rf structure where the phase advance between the accelerating standing wave
cavities is π. In these cavities the aperture radius is 2.624 mm and the corresponding shunt
impedance is 300 MΩ/m with 77K copper walls. We propose a novel DCA rf structure with 3π/4phase advance between the individually fed cavities aperture radius of 3.55mm for the same shunt
impedance and the peak field constraints. Because of this 35% larger aperture, this rf structure
is much more resilient to both short-range and long-range wakefield effects. The researchers at
SLAC have already proposed and designed a 3π/4 DCA with four feeding waveguide manifolds.
The implementation of four waveguide manifolds is, however, mechanically challenging. Here,
we present a novel 3π/4 DCA for C3 which is based on only two waveguide manifolds. This rf
structure comprises of 56 cavities where cavities are fed in pairs through a standard π phase advance rf manifold. This is achieved by pairing the cavities as, first and third, second and forth,and so on. With such pairing, the phase advance between the two cavities in a pair is π/2 and thephase advance between successive pairs is π. The copper cavities are designed to give a coupling
coefficient of 1.82 at 77K temperature, as required for critical coupling to accelerate 190 mA with
70 MV/m gradient.

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主著者: NANNI, Emilio (SLAC National Accelerator Laboratory); SHUMAIL, Muhammad (SLAC); LI,
Zenghai (SLAC)

発表者: SHUMAIL, Muhammad (SLAC)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 161 をご覧ください。

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投稿 ID: 187

Status and Plans for the C3 Quart ⋯タイプ: Oral presentation (remote)

Status and Plans for the C3 Quarter Cryomodule2024 年 7 月 10 日水曜日 9:20 (20 分)
To achieve target performance of the C3 accelerator, many elements will need to be manufactured,assembled, and aligned in use to very tight tolerances. Testing of accelerating structure manufacturing, alignment, mounting, and liquid nitrogen cooling will be performed at SLAC using an
accelerator length of approximately 2 meters. This talk will review progress and plans toward commissioning a Quarter Cryo-Module “QCM”test system including the design of a 1 meter length ofaccelerating structure and the support and alignment system required for test. This system review
will include details of the vacuum insulated cryostat sized to allow testing 2 sections of 1m longaccelerating structure with quad and BPM supported on a frame representative of a system that
could be used in the C3 target cryo-module containing 8 meters of accelerating structure. It is intended that the QCM system will be used to evaluate a series of accelerating structures, supports,
and measurements techniques. Some of the initial plans will be reviewed in this talk.

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主著者: VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); NANNI, Emilio (SLAC National Accelerator Laboratory); Mr ANDY, Haase (SLAC National Accelerator Laboratory / Stanford University); BREIDENBACH, Martin (SLAC); SHUMAIL, Muhammad (SLAC); LI, Zenghai (SLAC)
発表者: Mr ANDY, Haase (SLAC National Accelerator Laboratory / Stanford University)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 162 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 188

High Gradient Testing of a Meter- ⋯タイプ: Oral presentation (remote)High Gradient Testing of a Meter-Scale
Distributed-Coupling C3 Accelerating Structures
2024 年 7 月 10 日水曜日 9:40 (20 分)
In this paper we report on the design, fabrication, tuning and high-power RF testing of the fundamental accelerating structure for the Cool Copper Collider (CCC). The results presented here
cover the temperature range from room temperature to liquid nitrogen boil off: 20oC - 77 K
At room temperature, RT, with a N2 gas purge of 1 atmosphere, the CCC structure was tuned to aresonance frequency of < fo> = 5.693 420 GHz, at 77K the structure tuned frequency is reported as< fo> = 5.712 057 667 GHz. The repeatability of the CCC structure to undergo both vacuum pumpdown and thermal cycles from RT to LN2 will be presented.
For the high-power RF testing the CCC structure was immersed in liquid nitrogen at the Radiabeam C-Band test facility. High Power RF breakdown data will be present along with our future
experimental plans.

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主著者: DHAR, Ankur (SLAC National Accelerator Lab); PALMER, Dennis (SLAC National Accelerator Laboratory / Stanford University); NANNI, Emilio (SLAC National Accelerator Laboratory); BROZENETS,
Valery (SLAC National Accelerator Laboratory / Stanford University)

発表者: PALMER, Dennis (SLAC National Accelerator Laboratory / Stanford University)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 163 をご覧ください。

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投稿 ID: 189

Modeling and Design of the SLAC ⋯タイプ: Oral presentation (in person)

Modeling and Design of the SLAC 75XP4 Klystron2024 年 7 月 10 日水曜日 16:30 (30 分)
The SLAC 75XP series klystron was developed in the late nineties / early 2000’s as a 60% efficient,
75 MW permanent magnet-focused klystron at X-band for the Next Linear Collider (NLC). SLAC
is pursuing the latest design iteration of the 75XP series –the 75XP4 - for potential deployment
in future colliders facilities like Cool Copper Collider. Here, we discuss the history and lessons
learned from the initial 75XP klystrons (75XP1 through 75XP3 series). Recent design modifications
for the 75XP4 and simulation results will be discussed. Finally, a status update of SLAC’s current
efforts to build and test an improved 75XP4 version will be presented.

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主著者: HAASE, Andy; SY, Ann; WEATHERFORD, Brandon; GERENAN, Don; JONGEWAARD,
Erik; MERRICK, Julian; OTHMAN, Mohamed; DOLGASHEV, Valery (SLAC National Acclerator Laboratory)

発表者: WEATHERFORD, Brandon
セッション分類: Applications
トラック種別: Accelerator: Applications

October 3, 2024

ページ 164 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 190

Jet origin identification for electr ⋯タイプ: Oral presentation (in person)

Jet origin identification for electron positron Higgs
factory2024 年 7 月 9 日火曜日 14:20 (20 分)
To enhance the scientific discovery power of high-energy collider experiments, we propose andrealize the concept of jet origin identification that categorizes jets into 5 quark species (b, c, s, u,d), 5 anti-quarks (¯b, ¯c, ¯s, ¯u, ¯ d), and the gluon. Using state-of-the-art algorithms and simulatedν¯νH,H →jj events at 240 GeV center-of-mass energy at the electron-positron Higgs factory, thejet origin
identification simultaneously reaches jet flavor tagging efficiencies ranging from 67% to 92% forbottom, charm, and strange quarks, and jet charge flip rates of 7% to 24% for all quark species.
We apply the jet origin identification to Higgs rare and exotic decay measurements at the nominal
luminosity of the Circular Electron Positron Collider (CEPC), and conclude that the upper limits
on the branching ratios of H → s¯s, u¯u, d ¯ d, and H → sb, db, uc, ds can be determined to 2×10−4
to 1×10−3 at 95% confidence level.
We also discussed its application on EW and Flavor Physics measurements at future electronpositron Higgs factory.

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主著者: RUAN, Manqi (IHEP-LLR/CERN)
発表者: RUAN, Manqi (IHEP-LLR/CERN)
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 165 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 191

Design of the ILC electron-driven ⋯タイプ: Oral presentation (in person)

Design of the ILC electron-driven positron source
and utilization of black-box optimization
2024 年 7 月 10 日水曜日 11:20 (20 分)
The International Linear Collider (ILC) represents the next generation of electron-positron colliders, designed to operate at center-of-mass energies ranging from 250 GeV, with plans to extend up
to 1 TeV in the future. This opens up a broad spectrum of possibilities for exploring physics beyond
the Standard Model. The ILC requires advanced engineering technology and meticulous design togenerate large quantities of positrons. In the design of the ILC electron-driven positron source,
simulation tools such as Geant4, GPT, and SAD are employed. In a significant shift from the previous human-intensive, step-by-step optimization procedures, we have now embraced black-box
optimization methods, including Bayesian optimization, to streamline and enhance the parameter
optimization of the positron source accelerator system. This methodological evolution has not
only boosted efficiency but also redirected more resources towards further design improvements.
By incorporating machine learning techniques from the initial stages of accelerator design, we
anticipate the development of accelerators that are not only more efficient but also significantly
more precise. Here, we present the current status of the ILC electron-driven positron source andits design methodology.

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主著者: KUROGUCHI, Shunpei (Hiroshima U.)
共著者: TAJINO, Hiroki; URAKAWA, Junji (KEK); YOKOYA, Kaoru; ZACHARY, Liptak (Hiroshima
University); FUKUDA, Masafumi (KEK: High energy accelerator research organization); KURIKI,
Masao; TAKAHASHI, Tohru; Mr MORIKAWA, Yu (KEK); OMORI, tsunehiko (KEK); Dr ENOMOTO,
yoshinori (KEK)
発表者: KUROGUCHI, Shunpei (Hiroshima U.)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 166 をご覧ください。

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投稿 ID: 192

Towards production readiness wi ⋯タイプ: Oral presentation (remote)Towards production readiness with the Key4hep
software stack for future colliders
2024 年 7 月 10 日水曜日 14:20 (20 分)
Physics studies for future colliders require a reliable software environment. For many years thishas been delivered by iLCSoft for the linear collider communities. In the last five years a common effort of several communities, including ILC, CLIC, FCC and CEPC, have collaborated on the
Key4hep software stack to deliver a common software stack for all future collider communities.
This software stack has been used for physics studies already and is reaching production readiness.
This presentation an overview of the current status of Key4hep, giving special emphasis on thedevelopments that are particularly relevant for the linear collider communities. We will show theseamless integration of existing reconstruction and analysis software that have been developedin the last 15 years by the linear collider communities. Additionally, we will lay out the pathforward from a software perspective and report on experiences from migrating the standard ILD
reconstruction chain towards Key4hep. Additionally, we show some new developments for ILD
that are currently ongoing within Key4hep. Finally, we report on currently ongoing developments
and future plans.

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主著者: SAILER, Andre (CERN); HEGNER, Benedikt (CERN); FRANCOIS, Brieuc (CERN); GAEDE,Frank; GANIS, Gerardo (CERN); STEWART, Graeme A (CERN); XINGTAO, Huang (Shandong University); ZOU, Jiaheng (Chinese Academy of Sciences); CARCELLER, Juan Miguel (CERN); SMIESKO,
Juraj (CERN); REICHENBACH, Leonhard (CERN / University of Bonn (DE)); FILA, Mateusz Jakub(CERN); KO, Sang Hyuon (Seoul National University); SASIKUMAR, Swathi (CERN); LIN, Tao (IHEP); LI,
Teng (Shandong University); MADLENER, Thomas (Deutsches Elektronen-Synchrotron (DE)); LI, Weidong (IHEP); FANG, Wenxing (IHEP); ZHANG, Xiaomei (IHEP)
発表者: MADLENER, Thomas (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 167 をご覧ください。

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投稿 ID: 193

Advancements in Beam Delivery ⋯タイプ: Oral presentation (remote)

Advancements in Beam Delivery Systems: CLIC
Innovations and Plasma Collider Applications
2024 年 7 月 10 日水曜日 15:00 (15 分)
This talk presents the latest developments in beam delivery systems (BDS) for the Compact Linear Collider (CLIC) and their applications in plasma colliders. The CLIC’s BDS has undergone
significant refinements to address challenges in minimizing beam size, correcting chromatic aberrations, and maintaining stability at high energies (380 GeV and 3 TeV). Key innovations include
the integration of detector solenoid effects and the implementation of a dual BDS concept. This
concept effectively manages larger crossing angles and the associated luminosity losses, which are
critical at energies up to 3 TeV. Furthermore, the extension to a proposed 7 TeV CLIC BDS design
anticipates the requirements of future colliders, focusing on trajectory bending minimization andchromaticity correction. Collaborations with plasma collider projects like Laser Plasma Accelerators (LPA) and Hybrid, Asymmetric, Linear Higgs Factory (HALHF) highlight synergistic solutions
to shared technical challenges, notably in emittance preservation and energy spread control. These
collaborations are pivotal in advancing the understanding of beam dynamics and delivery, setting
a robust foundation for next-generation particle collider designs.

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主著者: CILENTO, Vera (CERN)
共著者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES)); TOMAS GARCIA, Rogelio(CERN)

発表者: CILENTO, Vera (CERN)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 168 をご覧ください。

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投稿 ID: 194

CEPC Green Accelerator Techno ⋯タイプ: Oral presentation (in person)

CEPC Green Accelerator Technology Development
2024 年 7 月 9 日火曜日 16:00 (15 分)
The Circular Electron Positron Collider (CEPC) is a proposed high-energy physics facility designed
to advance the frontiers of scientific research while maintaining a strong commitment to environmental sustainability. This paper explores the global trend towards greener accelerators andoutlines the specific initiatives undertaken by the Institute of High Energy Physics (IHEP). International efforts have focused on enhancing integrated management capabilities, improving energy
utilization efficiency of various measurements. IHEP’s green initiatives for particle accelerators
are noteworthy. These include the large-scale utilization of solar energy, the pioneering adoption of permanent dipole magnets in China for the High Energy Photon Source (HEPS) facility,
the development of high-efficiency klystrons, improvements in the Q value of superconducting
high-frequency cavities and superconducting magnets, recycling of liquid helium, optimizationof large cryogenic systems, and the practical application of waste heat resources. However, thetransition to greener accelerators faces some challenges and difficulties. These range from theneed for new theories and schemes to technological limitations and economic considerations, etc.
Despite these difficulties, the outlook is promising, with the potential for significant reductions inenergy consumption, emissions, and waste generation. In summary, through the green initiatives
and contributions to the global green accelerator movement of CEPC, it paves the way for a moreenvironmentally sustainable future in particle accelerator facilities.

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主著者: GE, Rui (IHEP，CAS)
発表者: GE, Rui (IHEP，CAS)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 169 をご覧ください。

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投稿 ID: 195

Introduction of CEPC Industry Pr ⋯タイプ: Oral presentation (remote)

Introduction of CEPC Industry Promotion
Consortium (CIPC)
2024 年 7 月 9 日火曜日 14:05 (15 分)
As CEPC-SppC Industrial Promotion Consortium, CIPC is an industrial collaborative organizationin China that supports CEPC. It currently has nearly a hundred member units and aims to jointly
tackle key technologies, cultivate industrialization, and promote the orderly development of manufacturing, technology, and engineering processes in China’s industry. The report introduces the
CIPC’s founding background, development vision and organizational structure, details CIPC members’ latest achievements in boosters, collision rings, MDI, civil engineering, cryogenics, vacuum
and other CEPC related issues, comprehensively presents the CIPC’s development and current
situation.

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主著者: GAO, Jinlin (北京中科富海低温科技有限公司)
発表者: GAO, Jinlin (北京中科富海低温科技有限公司)
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 170 をご覧ください。

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投稿 ID: 196

Fast Timing for Particle ID
タイプ: Oral presentation (in person)

Fast Timing for Particle ID
2024 年 7 月 10 日水曜日 14:40 (20 分)
The identification of certain charged hadron species, e.g. Kaons and protons, plays an importantrole in many physics analyses. Time-of-flight measurements can contribute to identifying theseparticles if both the length of the flight path as well as the time of arrival can be determined with
sufficient precision. This contribution will discuss the recent progress on both aspects, and inparticular compare classic as well as machine-learning based algorithms in order to estimate thetime-of-arrival at the calorimeter front from the time measurements of individual hits in a shower
or MIP trace.

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主著者: DUDAR, Bohdan (DESY); GAEDE, Frank; LIST, Jenny (Deutsches Elektronen-Synchrotron(DE)); HELMS, Konrad
発表者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Software, Reconstruction, Computing
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 171 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 197

Capture Cavities for the CW Pola ⋯タイプ: Oral presentation (remote)Capture Cavities for the CW Polarized Positron
Source Ce+BAF
2024 年 7 月 10 日水曜日 9:00 (20 分)
The initial design of the capture cavities for the continuous wave (CW) polarized positron beams
at Jefferson Lab (Ce+BAF) is presented. A chain of standing wave multi-cell copper cavities inside
a solenoid tunnel are selected to bunch/capture positrons. The cavity design strategy is presented
to accommodate constrains from the large phase distribution of the incident beams, RF power,radiation and RF heating, beam loading, etc. to improve the capture efficiency. A matrix of design
parameters’ range are given for future system optimization when the the capture cavities are considered together with other sub-systems and beam dynamics. The contents will also be useful forother CW cavity design for beams with large phase space distribution.

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主著者: WANG, Shaoheng (Jefferson Lab)
共著者: USHAKOV, Andriy (Jefferson Lab); WANG, Haipeng; GRAMES, Joseph (JLab); Dr RAUT,
Nabin (Jefferson Lab); RIMMER, Robert (JLab); ROBLIN, Yves
発表者: WANG, Shaoheng (Jefferson Lab)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

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投稿 ID: 198

Update on Ce+BAF Positron Acti ⋯タイプ: Oral presentation (remote)

Update on Ce+BAF Positron Activities
2024 年 7 月 9 日火曜日 9:20 (20 分)
A baseline concept for a continuous wave (CW) polarized positron injector was developed for theContinuous Electron Beam Accelerator Facility (CEBAF) at Jefferson Lab (Ce+BAF) [1]. This concept is based on positron beam generation by a high current polarized electron beam (1 mA, 120
MeV, 90% polarization) irradiating a water-cooled, 4 mm thick rotating tungsten target or suitable
alternative. An overview of the Ce+BAF concept and update about the positron injector development activities will be presented, including the polarized electron source concept, simulationsof positron beam generation, positron capture, calculations of energy deposited by beams in thetarget, capture magnets and standing wave cavities, and shielding design.
[1] J. Grames et al., “Status of Ce+BAF: Polarized Positron Beam Capability at CEBAF 12 GeV”,
14th International Particle Accelerator Conference (IPAC’23), Venice Italy, May 7-12, MOPL152.

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主著者: USHAKOV, Andriy (Jefferson Lab)
発表者: USHAKOV, Andriy (Jefferson Lab)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 173 をご覧ください。

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投稿 ID: 199

Status of the drift chamber project ⋯タイプ: Oral presentation (in person)

Status of the drift chamber project for the IDEA
detector proposal for FCC-ee
2024 年 7 月 10 日水曜日 9:00 (20 分)
The future circular electron-positron collider FCCee is receiving much attention in the context of
the FCC Feasibility Study currently in progress in preparation for the next EU strategy update.
The most recent status of the R&D of the drift chamber project for the IDEA detector concept ispresented. We discuss the physics requirements, the technical solutions chosen to address them,
the performance of the cluster counting technique to improve the particle identification capabilityof the detector by using testbeam data, and the further steps on the path of the construction of afull-lenght prototype.

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主著者: DE FILIPPIS, Nicola (Politecnico e INFN, Bari (IT))
発表者: DE FILIPPIS, Nicola (Politecnico e INFN, Bari (IT))
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

ページ 174 をご覧ください。

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投稿 ID: 200

Significance of participating in ⋯タイプ: Oral presentation (in person)

Significance of participating in ILC-related R&D as aregional company located near an ILC candidate site2024 年 7 月 9 日火曜日 15:05 (10 分)
Kondo Equipment Co.Ltd. is in Kitakami City, Iwate Prefecture, where is 40-50 kilometers from the
Kitakami Highlands, the candidate site of the ILC. Our company’s main business is plumbing. Our
main products are the piping often used in ILC, and we are able to carry out the entire process fromdesign to construction to meet the specifications of the client. When the Kitakami Highlands arechosen as the site for the ILC, we would like to be involved in the project as a plumbing contractor
and as a local company. We are currently participating in two research and development projects
to make this dream a reality. One is “Design of ILC Main Beam Dump,”in which we are studying
the generation of vortex flow in a water pressure vessel by using simulations in cooperation with
the Iwate Prefectural Industrial Research Center and the Iwate Industrial Promotion Center under
the guidance of KEK. The second theme is “Design of Cooling Water System and Piping in Electron
Driven Positron Source Tunnel”. We are working on this theme with the same development structure as the first theme. We believe that local companies’ participation in research to be involved in
the ILC and to increase their knowledge of the ILC will contribute to and revitalize the region. As alocal company, we will continue to hold this belief strongly and focus on ILC-related development
and research program.

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主著者: TAKIZAWA, Shinichi
発表者: TAKIZAWA, Shinichi
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 175 をご覧ください。

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投稿 ID: 201

Challenges and breakthroughs in ⋯タイプ: Oral presentation (in person)

Challenges and breakthroughs in recent RF Solid
State PA design by Radial Combiner design with
Initiatives for SDGs
2024 年 7 月 9 日火曜日 17:25 (10 分)
R&K, an independent company, has achieved production of 2.3 million 1.9GHz microwave power
amplifiers for mobile-comm’s-base-stations and then also supplies wideband power amplifiers forautomobile EMC testing for domestic automobile industries. Then 16 years ago, we started new
design and producing some hundreds kW RF SSA for accelerator applications instead of Klystron/ tube alternatives.
The measure characteristics of this amplifier is possible to design a band in a very wide frequency
range available from few MHz to 14 GHz, and there is also max-power-changing capability in few
kW to few MW design available even after system completed. Recently, SSA has gained significant
advantages over vacuum tubes in terms of size, low power consumption, high efficiency, low cost,and adaptive power design. In addition to these, we have found that SSA has very low phase noiseand low envelope noise that cannot be achieved with vacuum tubes.
All these points suggest a strong trend toward solid-state amplifiers and a move away from vacuum
tube systems, even for power amplifiers used in particle accelerators. There is no doubt that allthese improved performances will eventually lead to a strong trend towards his SDGs.

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主著者: Mr KOBANA, Riichiro (R&K Company Limited)
発表者: Mr KOBANA, Riichiro (R&K Company Limited)
セッション分類: Industry
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 176 をご覧ください。

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投稿 ID: 202

Global EFT fits for future colliders
タイプ: Oral presentation (remote)

Global EFT fits for future colliders
2024 年 7 月 10 日水曜日 16:30 (25 分)
We present SMEFiT3.0, an updated global SMEFT analysis of Higgs, top quark, and diboson production data from the LHC complemented by electroweak precision observables (EWPOs) from
LEP and SLD. We consider recent inclusive and differential measurements from the LHC Run II
and estimate the impact of HL-LHC measurements on the SMEFT parameter space when addedon top of SMEFiT3.0, through dedicated projections extrapolating from Run II data. We quantify
the significant constraints that measurements from two proposed high-energy circular colliders,the FCC-ee and the CEPC, would impose on both the SMEFT parameter space and on representative UV-complete models. The framework presented in this work may be extended to otherfuture colliders and running scenarios, providing timely input to ongoing studies towards futurehigh-energy particle physics facilities.

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主著者: VRYONIDOU, Eleni (University of Manchester (GB))
発表者: VRYONIDOU, Eleni (University of Manchester (GB))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 177 をご覧ください。

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投稿 ID: 203

Update of the CLIC positron source
タイプ: Oral presentation (remote)

Update of the CLIC positron source
2024 年 7 月 10 日水曜日 16:00 (20 分)
The CLIC positron source was simulated and optimised. A new baseline was proposed with asingle amorphous tungsten target and a flux concentrator based matching device. Misalignmentsof the beamline are studied. Alternative scenarios with higher positron yields are also studied.

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主著者: Mr ZHAO, Yongke (CERN)
共著者: LATINA, Andrea (CERN); DOEBERT, Steffen (CERN)
発表者: Mr ZHAO, Yongke (CERN)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 178 をご覧ください。

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投稿 ID: 204

Update of the CLIC RTML
タイプ: Oral presentation (remote)

Update of the CLIC RTML
2024 年 7 月 10 日水曜日 14:00 (20 分)
The CLIC RTML was simulated and optimised for the 380 GeV energy stage. Some remaining
problems in the RTML design were solved and the baseline design was finalised. The cost for the
BC2 and the bunch phase shift effect were minimised.Static imperfections were studied with theemittance budget well achieved after BBA corrections. Jitter amplification was also studied. The
possibility of using X-band or C-band booster linac was also studied.

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主著者: ZHAO, Yongke (CERN)
共著者: LATINA, Andrea (CERN)
発表者: ZHAO, Yongke (CERN)
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 179 をご覧ください。

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投稿 ID: 205

ttbar-threshold: Focus topics for t ⋯タイプ: Oral presentation (in person)

ttbar-threshold: Focus topics for the ECFA study on
Higgs / Top / EW factories
2024 年 7 月 9 日火曜日 12:00 (20 分)
I present the status of the ECFA Higgs/EW/Top Factory workshop activities for the ttbar-thresholdfocus topic (see https://arxiv.org/pdf/2401.07564).
An expert team has been setup aiming to provide a firm basis for the projected precision of the
top quark mass and width measurements from a scan of the center-of-mass energy through the
top quark pair production threshold. The prospects for measurements of top quark electro-weakcouplings are included in the study, too. The goal is to provide a realistic estimate of statisticaluncertainties, and systematic uncertainties from theory and experiment.

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主著者: VOS, Marcel (IFIC (UVEG/CSIC) Valencia)
発表者: VOS, Marcel (IFIC (UVEG/CSIC) Valencia)
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 180 をご覧ください。

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投稿 ID: 206

Tracking Performance Study for F ⋯タイプ: Oral presentation (remote)

Tracking Performance Study for Future Circular
Collider (FCCee) with CLD Detector
2024 年 7 月 10 日水曜日 9:40 (20 分)
The Future Circular Collider electron-positron (FCCee) feasibility study involves assessing the capabilities and performance of potential detector configurations. This study focuses on the impact
of various detector parameters on tracking performance. Specifically, the influence of different geometries, material budgets, and magnetic field strengths on the precision and efficiency of tracking
performance within the CLIC-Like Detector is investigated.
Tracking performance is evaluated using full simulations. The effects on track reconstruction efficiency and resolution are assessed by adjusting the detector geometry and material. Additionally,
the influence of magnetic field strengths on tracking accuracy is explored.
This study provides valuable insights into optimising the design parameters of the FCCee detector
to achieve high tracking performance, contributing essential information for the ongoing FCCee
feasibility study and future collider detector development.
Keywords: FCCee feasibility study, CLD, Full simulation, tracking performance, detector geometry

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主著者: SADOWSKI, Gaelle (Centre National de la Recherche Scientifique (FR))
共著者: ANDREA, Jeremy (Centre National de la Recherche Scientifique (FR)); BESSON, Auguste
Guillaume (Centre National de la Recherche Scientifique (FR)); EL BITAR, Ziad (Centre National de laRecherche Scientifique (FR))
発表者: SADOWSKI, Gaelle (Centre National de la Recherche Scientifique (FR))
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

ページ 181 をご覧ください。

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投稿 ID: 207

Searching for new physics in WW ⋯タイプ: Oral presentation (in person)

Searching for new physics in WW and single-W
events2024 年 7 月 10 日水曜日 9:30 (20 分)
Pair- and single-production of W bosons provide many opportunities to look for new physics
via precision measurements, for instance via scrutinizing the involved triple-gauge vertices or bymeasuring CKM matrix elements in an environment very complementary to B hadron decays.
This contribution presents the ongoing work based on full simulation of the ILD detector concept,
exploiting the O(10ˆ8) W bosons produced during the 250 GeV stage of the ILC.

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主著者: FILIPE, Andre (DESY); LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); REICHENBACH, Leonhard (CERN / University of Bonn (DE)); EINHAUS, Ulrich (DESY)
発表者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 182 をご覧ください。

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投稿 ID: 208

Towards an update of the ILD ZH ⋯タイプ: Oral presentation (remote)Towards an update of the ILD ZHH analysis
2024 年 7 月 10 日水曜日 11:40 (15 分)
The double Higgs-strahlungs process ee -> ZHH allows to access the Higgs self-coupling at energies above ˜450 GeV. It exhibits a very different BSM behaviour than fusion-type processes likegluon-gluon fusion at LHC (and future hadron colliders) and WW / ZZ fusion at higher energy
lepton colliders. Therefore it adds unique information to the picture, in particular should the valueof the Higgs self-coupling differ from its SM prediction. The last full evaluation of the ILC’s potential to measure this process is more than 10 years old, and many of the reconstruction tools
received very significant improvements since. This contribution will present the ongoing work in
ILD to update the ZHH projections for the next European Particle Physics Strategy Update.

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主著者: BLIEWERT, Bryan; VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US)); LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); TORNDAL, Julie Munch (DESY); TIAN, Junping (University of Tokyo)
発表者: BLIEWERT, Bryan
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 183 をご覧ください。

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ScandiNova modulators for ⋯投稿 ID: 209

タイプ: Poster (in person)

ScandiNova modulators for electron-driven positronsource in ILC project2024 年 7 月 8 日月曜日 17:40 (20 分)
The International Linear Collider (ILC) is an electron-positron linear collider to explore physics
beyond the Standard Model of particle physics in the center of mass energy of 250 GeV to 1 TeV.
In the TDR, to make a positron, a helical undulator of more than 150 m long will be planning toinsert in the main electron linac.
And in parallel, to mitigate the risks associated with the project, a backup system by using electrondriven positron source has been studying. In this paper, we will describe the solid state modulator
with klystron, called “RF unit”, which maybe possible to realize the ILC positron source.

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主著者: YUSHIRO, Osamu (ScandiNova Systems KK)
共著者: Mr PEPITONE, kevin (ScandiNova Systems AB)
発表者:

YUSHIRO, Osamu (ScandiNova Systems KK); Mr PEPITONE, kevin (ScandiNova Systems

AB)

セッション分類: Posters
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 184 をご覧ください。

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投稿 ID: 210

Progress of research on corrugat ⋯タイプ: Oral presentation (in person)

Progress of research on corrugated wakefieldstructures in PAL working group.
2024 年 7 月 10 日水曜日 14:45 (15 分)
Our research group, composed of Pohang Accelerator Laboratory, Korea University, Northen Illinois Universiy, and Argonne Wakefield Accelerator Facility, is researching on wakefields generated in corrugated structures. Main goal of our research is to make several applications such as a
THz source in the GW scale, wakefield accelerators and IR-FELs.
As a first step, we designed and fabricated structures in the 200 GHz frequency range, and theirperformance were validated by the experimental results in AWA. In the first experiment, evenwith a fabrication tolerance of around 10 micrometers, the simulation results matched well withthe experimental results. We are developing more precise fabrication methods by lithography forhigher output power and frequency. As the second step, we are preparing to fabricate corrugatedstructures around 425 GHz and demonstrate GW-level THz output.

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主著者: KONG, Hyung-sup (Pohang Accelerator Laboratory)
共著者: Dr MIN, Chang-ki (Pohang Accelerator Laboratory); KIM, Changbum (Pohang Accelerator
Laboratory); Dr CHEN, Gongxiaohui (Argonne National Laboratory); HA, Gwanghui (Northern Illinois
University); Dr KWAK, Ho Jae (Pohang Accelerator Laboratory); Ms KIM, Jina (Pohang Accelerator
Laboratory); Dr KO, Jinjoo (Korea University Sejong Campus); Dr POWER, John (Argonne National
Laboratory); Dr KIM, JongHyun (Pohang Accelerator Laboratory); Mr SEO, Min Kyu (Korea University
Sejong Campus); Prof. PARK, S.H. (Korea University Sejong Campus); Dr DORAN, Scott (Argonne
National Laboratory); Mr KIM, Seung-hwan (Pohang Accelerator Laboratory); Dr SHIN, Seunghwan(Korea Photon Source); Dr LIU, Wanming (Argonne National Laboratory)
発表者: KONG, Hyung-sup (Pohang Accelerator Laboratory)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 185 をご覧ください。

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投稿 ID: 211

ILC Vanguard Initiative
タイプ: Oral presentation (in person)

ILC Vanguard Initiative
2024 年 7 月 9 日火曜日 13:35 (15 分)
The ILC Vanguard Initiative was established August 2023 with the premise of situating the ILC in
Japan. This includes the construction of a new social model, the creation of new values, and thematerialization of the plan. The primary focus is to advance preparations for urban development
related to the future and growth of the prospective site locations, which require extensive surveys,
facility reviews, and careful planning. In this talk we report motivation and recent activities of the
ILC Vanguard Initiative.

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主著者: TAKAHASHI, Tohru
発表者: TAKAHASHI, Tohru
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 186 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 212

Recent updates of BSM searches at ⋯タイプ: Oral presentation (in person)

Recent updates of BSM searches at CMS and future
prospects at HL-LHC
2024 年 7 月 10 日水曜日 9:16 (25 分)
This talk covers recent highlights of BSM searches from the CMS experiment and future prospects
at HL-LHC.

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主著者: LEE, Jeongeun (Seoul National University (KR))
発表者: LEE, Jeongeun (Seoul National University (KR))
セッション分類: BSM, Global Interpretations
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 187 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 213

CFD simulations of high power p ⋯タイプ: Oral presentation (remote)

CFD simulations of high power positron convertertargets
2024 年 7 月 10 日水曜日 9:20 (20 分)
High power converter positron targets can be designed and assessed thermally with computational
fluid dynamics (CFD). I will present the CFD assessments of a high power liquid Xenon (LXe) target
and a rotating tungsten target with the ILC time structure for the beam.

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主著者: COVRIG DUSA, Silviu (Jefferson Lab)
発表者: COVRIG DUSA, Silviu (Jefferson Lab)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 188 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 214

Luminosity Spectra of Multi-TeV ⋯タイプ: Oral presentation (in person)

Luminosity Spectra of Multi-TeV PWFA
Gamma-Gamma Colliders
2024 年 7 月 9 日火曜日 9:40 (20 分)
There is growing interest in the gamma-gamma configurations of multi-TeV PWFA colliders since
they do not require positrons or flat beams and may have the same particle physics potential as
multi-TeV electron positron or muon anti-muon colliders. In this report the CAIN Monte Carlo isused to study the luminosity spectra of several gamma-gamma configurations assuming a roundbeam 15 TeV PWFA electron electron collider with a geometric luminosity of 1.5e36 cm-2 s-1. Asa starting point, the parameters for optical laser and X-ray laser gamma gamma Higgs factory
designs are scaled to 15 TeV center-of-mass energy. Wide variations in the luminosity spectra areobserved as the laser wavelength is varied. Large beam-beam electromagnetic fields strengths –approaching 60% of the Schwinger field in some cases –play a major role in determining the sizeand shape of the gamma-gamma luminosity spectra.

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主著者: BARKLOW, Tim (SLAC National Accelerator Laboratory (US))
発表者: BARKLOW, Tim (SLAC National Accelerator Laboratory (US))
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 189 をご覧ください。

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投稿 ID: 215

Reimagining Linear Collider Lum ⋯タイプ: Oral presentation (in person)

Reimagining Linear Collider Luminosity
Measurement2024 年 7 月 9 日火曜日 14:40 (20 分)
Our recent work has shown that a novel, much higher granularity
forward calorimetry concept can enable much more detailed and precise
reconstruction than the baseline designs based on LEP luminometers, together
with the capability of electron/positron/photon separation.
This new calorimeter concept is designed primarily to maximize the acceptancefor e+ e− → γγ as an alternative luminosity process, where it servesto define the inner edge of the acceptance (there is no outer edge - as thecomplete detector is used in the measurement), while continuing to provide
the standard luminosity measurement from small angle Bhabhas. It will also
serve as a general forward electromagnetic calorimeter helping ensure hermeticity
and detecting individual electrons, positrons and photons.
In this contribution we will highlight the Bhabha rejection capability in thecontext of the e+ e− → γγ luminosity measurement and investigate theutility of a Bhabha “mini-tracker” consisting of a few planes of
upstream thin silicon detectors. This will further refine the e+ /e− polar angle
measurement, improve Bhabha rejection (for γγ), and,last-but-not-least, help mitigate the beam-induced electromagnetic deflectionthat biases the Bhabha acceptance by providing high precision longitudinalvertex information in Bhabha events than can be used in diagnosing thisbeam/final-state e+ /e− effect.

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主著者: WILSON, Graham
共著者: Mr MADISON, Brendon (University of Kansas)
発表者: WILSON, Graham
セッション分類: Top, QCD, Flavor, Precision Modelling
トラック種別: Physics and Detector: Top quark, QCD, Flavour, Precision Modelling

October 3, 2024

ページ 190 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 216

Photon and Electron Reconstruct ⋯タイプ: Oral presentation (remote)Photon and Electron Reconstruction in an
Ultra-High Granularity Luminosity Calorimeter
2024 年 7 月 10 日水曜日 10:00 (30 分)
Our recent work has shown that a novel, ultra-high granularity,
forward calorimetry concept can enable much more detailed and precise
reconstruction than the compact baseline designs based on LEP luminometers, together
with the capability of electron/positron/photon separation.
In this contribution we will highlight the significantly more precise
measurements of photon four-vectors using both much better sampling for√high performance energy resolution (4%/ E) and the use of the energy deposition
around the initial photon conversion point rather than the traditional shower
center-of-gravity based estimates. We will also include related results on shower fitting.

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主著者: MADISON, Brendon (University of Kansas)
共著者: WILSON, Graham
発表者: MADISON, Brendon (University of Kansas)
セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 191 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 217

SRF programs towards High- ⋯タイプ: Oral presentation (in person)

SRF programs towards High-Q/High-G cavities in
IJCLab2024 年 7 月 9 日火曜日 9:20 (20 分)
IJCLab has been leading development and deployment of low-beta SRF cavities for proton andheavy ion accelerators.
We are launching a new project for sustainable Energy Recovery Linac (iSAS/PERLE) with stateof-the-art SRF cavities at 800 MHz.
Our proposal includes advanced heat treatment of such cavities to reach excellent quality factor
at high fields.
In this talk, we overview the status of this activity and its technical synergy with other SRF projects,
such as FCCee, EIC, and ILC.

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主著者: MIYAZAKI, Akira (CNRS/IN2P3/IJCLab Université Paris-Saclay (FR))
発表者: MIYAZAKI, Akira (CNRS/IN2P3/IJCLab Université Paris-Saclay (FR))
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 192 をご覧ください。

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投稿 ID: 218

Higgs Production at \muˆ+ \muˆ+ ⋯タイプ: Oral presentation (in person)

Higgs Production at \muˆ+ \muˆ+ Colliders
2024 年 7 月 9 日火曜日 11:45 (15 分)
Muon colliders offer exciting new opportunities to explore the Standard Model and beyond by unifying the energy and precision frontiers, thus also facilitating deeper insight into the Higgs sector
central to the Standard Model. In this work, motivated by recent developments in anti-muon cooling, we explore the prospects of Higgs production at \muˆ+ \muˆ+ colliders. At high energies,
Higgs production is dominated by WW-fusion, which for \muˆ+ \muˆ+ colliders occurs via splitting of an intermediate photon into a Wˆ+ Wˆ- pair. However, collinear photon emissions leadto numerical instabilities that make computations using event generators difficult. We therefore
propose splitting the phase-space into the sum of a non-collinear region calculable using event
generators, and a collinear region approximated by a parton distribution function for the photon.
We thus find that the cross-section for Higgs-production at \muˆ+ \muˆ+ colliders is almost as big
as for \muˆ+ \muˆ- colliders, and in particular for polarized anti-muons, is only smaller by a factor of about two. Hence, we argue that \muˆ+ \muˆ+ colliders offer a great opportunity as Higgs
factories to be constructed in the not-too-distant future.

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主著者: TAKAURA, Hiromasa (KEK); Mr TREUER, Lukas (KEK, The Gaduate U. Adv. Studies (SOKENDAI)); TAKAI, Ryoto (KEK, The Gaduate U. Adv. Studies (SOKENDAI)); KITANO, Ryuichiro; MATSUDO, Ryutaro (KEK); OKAWA, Shohei (KEK); HAMADA, Yu (DESY)
発表者: Mr TREUER, Lukas (KEK, The Gaduate U. Adv. Studies (SOKENDAI))
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

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投稿 ID: 219

Metrology in the integrated lumi ⋯タイプ: Oral presentation (remote)Metrology in the integrated luminosity
measurement at ILC
2024 年 7 月 10 日水曜日 16:40 (20 分)
Possibility that the ILD detector might be realized at a future e+e- collider calls for quantificationof precision of the integrated luminosity measurement, assuming here the ILC operating scenarios
at the Z-pole, 250 GeV, 500 GeV and 1 TeV center-of-mass energies. This is the first comprehensive
study of the systematic uncertainties in integrated luminosity measurement at ILC, rising frommetrology (detector positioning and alignment, beam properties and delivery to the IP), after thegeneric estimates given in LC-DET-2005-004.

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主著者: Dr SMILJANIC, Ivan (VINCA Institute of Nuclear Sciences, University of Belgrade (RS)); BOZOVIC-JELISAVCIC, Ivanka (University of Belgrade (RS))

共 著 者:Dr KACAREVIC, Goran (VINCA Institute of Nuclear Sciences, University of Belgrade

(RS))

発表者:

Dr SMILJANIC, Ivan (VINCA Institute of Nuclear Sciences, University of Belgrade (RS))

セッション分類: Calorimetry, Muon detectors
トラック種別: Physics and Detector: Calorimetry, Muon

October 3, 2024

ページ 194 をご覧ください。

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投稿 ID: 220

A Sustainability Strategy for the ⋯タイプ: Oral presentation (remote)A Sustainability Strategy for the Cool Copper
Collider2024 年 7 月 9 日火曜日 16:15 (15 分)
In this talk, we will discuss the studies presented in PRX ENERGY 2, 047001, where the carbon
impact of the Cool Copper Collider (C 3 ), a proposed electron-positron linear collider operated at
250 and 550 GeV center-of-mass energy, is evaluated. We introduce several strategies to reduce
the power needs for C 3 without modifications in the ultimate physics reach. We also propose ametric to compare the carbon costs of Higgs factories, balancing physics reach, energy needs, andcarbon footprint for both construction and operation, and compare C 3 with other Higgs factory
proposals –ILC, CLIC, FCC-ee and CEPC –within this framework. We conclude that the compact 8km footprint and the possibility for cut-and-cover construction make C 3 a compelling option for asustainable Higgs factory. More broadly, the developed methodology serves as a starting point forevaluating and minimizing the environmental impact of future colliders without compromising
their physics potential.

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主著者: BULLARD, Brendon (SLAC National Accelerator Laboratory); VERNIERI, Caterina (SLAC
National Accelerator Laboratory (US)); NTOUNIS, Dimitris (SLAC National Accelerator Laboratory(US)); NANNI, Emilio (SLAC National Accelerator Laboratory); BREIDENBACH, Martin (SLAC)
発表者: BULLARD, Brendon (SLAC National Accelerator Laboratory)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 195 をご覧ください。

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投稿 ID: 221

Simulation studies towards HEP a ⋯タイプ: Oral presentation (remote)

Simulation studies towards HEP applications ofplasma accelerators
2024 年 7 月 10 日水曜日 14:15 (15 分)
Plasma accelerators sustain large field gradients and could enable future x-ray sources and compact
linear colliders. The development of performant open-source simulation methods allows for theinvestigation of open challenges towards these applications, including the acceleration of beams
with high quality to high energies. This presentation will discuss recent studies on these topics.
First, we will discuss the possibility to use a laser-plasma accelerator as an injector for the nextgeneration storage ring Petra IV at DESY. This requires several nanocoulombs of 6-GeV electrons
per second with a sub-percent energy acceptance, and an energy compression beamline was developed to fulfil these requirements. A Conceptual Design Report will be published soon.
Second, to achieve the required high luminosity, linear colliders rely on flat beams to avoid potentially deleterious beamstrahlung effects. We show that flat beams in plasma accelerators can be
subject to beam quality degradation due to emittance mixing caused by transverse coupling in thewakefields. Depending on the mechanism causing the resonance, the use of laser drivers, flat particle beam drivers, or hollow plasma channels can avoid the resonance and mitigate the emittancedeterioration.

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主著者: THÉVENET, Maxence (DESY)
共著者: MARTINEZ DE LA OSSA, Alberto; OSTERHOFF, Jens (Lawrence Berkeley National Laborator); MEWES, Mathis (DESY); WINKLER, Paul Martin (University of Vienna (AT)); ANTIPOV,
Sergey; DIEDERICHS, Severin; FERRAN POUSA, Ángel
発表者: THÉVENET, Maxence (DESY)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 196 をご覧ください。

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投稿 ID: 222

Study on the development sched ⋯タイプ: Oral presentation (in person)

Study on the development schedule for the central
area of the ILC in Kitakami
2024 年 7 月 9 日火曜日 11:20 (15 分)
The development schedule of the ILC Central Area affects the assembly and installation scheduleof the detectors, which in turn significantly impacts the overall ILC construction schedule. We
conducted a detailed study of the process required for constructing the ILC at the Kitakami site inJapan, from the start of construction until the assembly of detectors can be started. The results ofthis study will be reported.

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主著者: SANUKI, Tomoyuki (Tohoku University)
共著者: KYOYA, Takashi (Tohoku University)
発表者: SANUKI, Tomoyuki (Tohoku University)
セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 197 をご覧ください。

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投稿 ID: 223

Plasma processing development f ⋯タイプ: Oral presentation (remote)

Plasma processing development for SPIRAL2
quarter-wave resonators: experimental andsimulation studies
2024 年 7 月 10 日水曜日 15:00 (20 分)
Plasma processing stands as an in-situ technique for mitigating field emission and multipacting
effects in the long-term operation of superconducting accelerating cavities. While extensively explored and applied to elliptical cavities, its application to quarter-wave resonators (QWRs) represents a relatively recent area of investigation. At IJCLab, ongoing efforts focus on refining plasma
processing techniques tailored for SPIRAL2 QWRs. This talk will center on our experimental findings, compared with numerical simulations of a simplified system featuring 2D axisymmetric geometry and employing a basic plasma chemistry composed of pure argon, instead of Ar/O2(10%).
This strategic simplification makes it possible to reduce the calculation time while also providing
an understanding of the dynamics of the plasma within the cavity. The simulations have been
conducted using COMSOL Multiphysics.

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主著者: CHENEY, Camille (IJCLAB)
発表者: CHENEY, Camille (IJCLAB)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 198 をご覧ください。

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投稿 ID: 224

Energy Upgrades of a linear Higgs ⋯タイプ: Oral presentation (in person)

Energy Upgrades of a linear Higgs factory
2024 年 7 月 8 日月曜日 15:15 (15 分)

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発表者: NANNI, Emilio (SLAC National Accelerator Laboratory)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 199 をご覧ください。

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投稿 ID: 225

Summary of RF Breakdown Studi ⋯タイプ: Oral presentation (in person)

Summary of RF Breakdown Studies using Single Cell
Standing Wave Accelerating Structures
2024 年 7 月 10 日水曜日 16:40 (20 分)
The acceleration gradient is a critical parameter affecting the feasibility and cost of large-scaleparticle accelerators such as normal conducting linear colliders. The main obstacle to increasing
the acceleration gradient or improving the reliability of a linear accelerator at a certain gradient isvacuum RF breakdown. To understand the basic physics of the RF breakdown in cavities suitablefor use in linear colliders, we developed a setup consisting of a reusable mode launcher and ashort standing wave accelerating structure. Over forty cavities have been tested over the past two
decades, giving us insight into different shapes, materials and manufacturing methods. In thisreport we will summarize the results.

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主著者: DOLGASHEV, Valery (SLAC National Accelerator Laboratory)
共著者:

SPATARO, Bruno; FAILLACE, Luigi; TANTAWI, Sami (SLAC); HIGASHI, Yasuo (KEK)

発表者: DOLGASHEV, Valery (SLAC National Accelerator Laboratory)
セッション分類: Normal conducting RF
トラック種別: Accelerator: Normal Conducting RF

October 3, 2024

ページ 200 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 226

Compact Traveling Wave X-band ⋯タイプ: Oral presentation (in person)

Compact Traveling Wave X-band Linac with RFPower Flow Outside Accelerating Cavities
2024 年 7 月 10 日水曜日 15:00 (30 分)
During the development of the NLC/JLC normal conducting X-band linear colliders, it became
clear that the RF power flow in traveling wave accelerating structures correlates more with the
RF breakdown rate than with the peak electric fields. To mitigate the adverse effects of RF power
flow, low group velocity and standing wave accelerating structures optimized for lower RF input
power have been developed. As an alternative, to avoid RF power passing through the accelerating
cavities, a new traveling wave structure was invented. Since this structure has higher efficiency
than traditional axially coupled accelerator structures, it can be used in compact linear accelerators.
In this report, we present a compact X-band linac that uses this new accelerating structure.

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主著者: DOLGASHEV, Valery (SLAC National Accelerator Laboratory)
BORCHARD, Philipp; KOSTIN, Roman (Euclid Techlabs); Dr KUZIKOV, Sergey (Euclid
Techlabs LLC)

共著者:

発表者: DOLGASHEV, Valery (SLAC National Accelerator Laboratory)
セッション分類: Applications
トラック種別: Accelerator: Applications

October 3, 2024

ページ 201 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 227

Cleanroom assembly of the IFMIF ⋯タイプ: Oral presentation (in person)

Cleanroom assembly of the IFMIF SRF Linac
2024 年 7 月 9 日火曜日 12:00 (20 分)
In complement to the development activities for fusion reactors (JT-60SA & ITER), Fusion for Energy contributes to the R&D for material characterisation facilities. Within the Broader Approach
agreement, different actors from Europe to Japan collaborate to develop and assemble in Japan
the LIPAC, a technical demonstrator of a D+ accelerator that will be used to produce neutron by
nuclear stripping reaction on a liquid Li target.
In 2024, the LIPAC is getting ready for the installation of the SRF cryomodule that will conclude
its construction. Started in March 2019, the assembly was paused a first time to solve technicalproblems on its solenoids. Resumed in August 2022, the assembly was paused a second time after
the completion of the cavity/coupler assembly to fix additional issues. In April 2024, the assembly restarted with the completion of the beam line. In this talk/paper, we will present and details
the different steps of the cleanroom assembly and how the different technical difficulties were
overcome.

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主著者: CHAMBRILLON, Janic (Fusion for Energy (F4E))
発表者: CHAMBRILLON, Janic (Fusion for Energy (F4E))
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 202 をご覧ください。

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投稿 ID: 228

Betatron radiation diagnostic sys ⋯タイプ: Oral presentation (in person)

Betatron radiation diagnostic systems for a plasma
wakefield-based linear collider
2024 年 7 月 9 日火曜日 10:20 (20 分)
Characterizing the beam-plasma interaction in the plasma wakefield accelerator, an essential ingredient for a potential linear collider or free-electron laser represents a significant challenge forexperimental measurements. The typical dimensions involved in such diagnostic systems are below one micron, with attendant femtosecond time-resolution. Further, the plasma environment
and the beam intensity generally prevent insertable, destructive diagnostics. The most robust
window into this interaction is betatron radiation, which reveals beam properties such as size,
emittance, matching, and development of instabilities. In this talk, we review the powerful new
double-differential spectrometer under development at UCLA that is to be installed at FACET-II.
We discuss the unique optics of this Compton-based spectrometer, which permits single shot measurements of incoming betatron gamma spectra ranging from 0.2 to 30 MeV. We describe significant progress in implementing machine learning techniques for reconstructing the beam-plasmainteraction physics.

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主著者: ROSENZWEIG, James (UCLA)
発表者: ROSENZWEIG, James (UCLA)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 203 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 229

HALHF: Current Status, Optimis ⋯タイプ: Oral presentation (remote)

HALHF: Current Status, Optimisation, and FuturePlans
2024 年 7 月 9 日火曜日 9:00 (20 分)
The HALHF concept utilises beam-driven plasma-wakefield acceleration to accelerate electrons tovery high energy and collide them with much lower-energy positrons accelerated in a conventional
RF linac. This idea, which avoids difficulties in the plasma acceleration of positrons, has been used
to design a Higgs factory that is much smaller, cheaper, and greener than any based solely on
radio-frequency technology. The talk will outline the original HALHF design, discuss challenges
to that design put forth by the HALHF collaboration and wider community, and highlight the
optimisation process pursued to solve these challenges. Finally the current status of the design—including possible evolution in several parameters—and plans for the next steps towards a preConceptual Design Report and the next ESPP Update will be given.

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主著者: FOSTER, Brian (University of Oxford (GB)); LINDSTRØM, Carl (University of Oslo, Norway); D’ARCY, Richard (University of Oxford)
発表者: D’ARCY, Richard (University of Oxford)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 204 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 230

Robotisation of cavity string asse ⋯タイプ: Oral presentation (remote)Robotisation of cavity string assembly at CEA
2024 年 7 月 10 日水曜日 15:20 (20 分)
Since 2017, CEA has been developing the use of collaborative robots (cobot) to carry out the steps
required to assemble superconducting cavities strings. This development is based on two main
objectives. The first is to reduce the tediousness for operators of certain stages of component
cleaning by blowing, so that they can focus on higher value-added tasks. The second is to improveassembly quality by keeping operators, the main sources of particle contamination in cleanrooms,
away from open critical RF surfaces. The integration of component cleaning (flange, inter-cavity
bellows, etc.) in the cleanroom by the cobot was carried out on the production of ESS cryomodules
cavity strings. For future projects, CEA is currently working on the cobotisation of component
assembly steps to meet the second objective.

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主著者: DRANT, Julien (CEA Saclay, IRFU)
共著者: BERRY, stephane (CEA-Saclay)
発表者: DRANT, Julien (CEA Saclay, IRFU)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 205 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 231

High-Q cavities measurements a ⋯タイプ: Oral presentation (remote)High-Q cavities measurements and diagnostics
2024 年 7 月 10 日水曜日 16:20 (20 分)
Research and development on high-Q cavities requires extensive experimental campaigns to understand the origin of possible performance limitations and then to study the effect of more advanced
surface treatments on the physical mechanisms governing such a high-Q operating regime.
From the experimental point of view, significant effort must be made to avoid flux trapping, either
by canceling the remanent field or by rapid cooling procedures. To this end, INFN LASA has initiated an upgrade of its vertical test facility. Ongoing activities include the construction of a new
dedicated cryostat, the development of an experimental system for external magnetic flux control
and regulation, and the integration of a wide range of diagnostics for quench and field emission
events. As examples, some experimental results on prototype high-Q cavities are reported anddiscussed.

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主著者: BERTUCCI, MIchele (INFN sezione di Milano)
発表者: BERTUCCI, MIchele (INFN sezione di Milano)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 206 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 232

Status of ess cryomodule test in o ⋯タイプ: Oral presentation (remote)

Status of ess cryomodule test in orepararion forbeam commissioning
2024 年 7 月 10 日水曜日 15:40 (20 分)
ESS is completing the installation of the first phase of the operation, which will start in the fall of
2024 on the partial beam dump and proceed with operation on the target in 2025, after receiving
the intentional neutron production license from the authorities.
All modules (CM) for this operation phase, with an energy reach of 870 MeV and a power capabilityof 2 MW, will be tested by early summer 2024.
Site Acceptance test of ESS elliptical modules takes place at TS2, Lund ESS Test Stand, and all
module performance data is stored. Along with cavity conditioning in an open loop and cavity
operation in a closed loop, field emission maximum energy and both gamma and neutron dose
rates are measured and stored.
The CM performance, associated statistics, operational experience and challenges is discussed here.

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主著者: MAIANO, Cecilia (ESS)
発表者: MAIANO, Cecilia (ESS)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 207 をご覧ください。

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投稿 ID: 233

IP-BDS area sub-tunnel proposal ⋯タイプ: Oral presentation (in person)

IP-BDS area sub-tunnel proposal and progress of the
3D CAD models of ILC
2024 年 7 月 9 日火曜日 11:00 (20 分)
The proposed sub-tunnels are considered necessary for the construction, installation and operationof the BDS and beam dump. It would also provide access to facilities such as a laser room forpolarimetry, a preparation room for beam dump experiments and magnet power supply rooms.
A constantly updated 3D CAD model will also be presented.

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主著者: Dr TERUNUMA, Nobuhiro (KEK)
発表者: Dr TERUNUMA, Nobuhiro (KEK)セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 208 をご覧ください。

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投稿 ID: 234

On site magnet winding
タイプ: Oral presentation (in person)

On site magnet winding
2024 年 7 月 9 日火曜日 11:35 (15 分)
On site magnet winding

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主著者: MAKIDA, Yasuhiro (KEK)
発表者: MAKIDA, Yasuhiro (KEK)セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 209 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 235

News on big solenoids
タイプ: Oral presentation (in person)

News on big solenoids
2024 年 7 月 9 日火曜日 11:50 (15 分)
News on big solenoids

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主著者: BUESSER, Karsten (DESY); BUESSER, Karsten Roland (Deutsches Elektronen-Synchrotron(DE))

発表者: BUESSER, Karsten (DESY); BUESSER, Karsten Roland (Deutsches Elektronen-Synchrotron(DE))

セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 210 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 236

Belle II IP Chamber
タイプ: Oral presentation (in person)

Belle II IP Chamber
2024 年 7 月 9 日火曜日 12:05 (15 分)
Belle II IP Chamber

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主著者: Mr SHIBATA, Kyo (KEK)
発表者: Mr SHIBATA, Kyo (KEK)セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 211 をご覧ください。

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投稿 ID: 237

MDI at gamma gamma collider
タイプ: Oral presentation (in person)

MDI at gamma gamma collider
2024 年 7 月 10 日水曜日 16:50 (15 分)
MDI at gamma gamma collider

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BARKLOW, Tim (Stanford Linear Accelerator Center SLAC); BARKLOW, Tim (SLAC National Accelerator Laboratory (US))

主著者:

BARKLOW, Tim (Stanford Linear Accelerator Center SLAC); BARKLOW, Tim (SLAC National Accelerator Laboratory (US))

発表者:

セッション分類: Conventional Facilities, Machine Detector interface
トラック種別: Accelerator: Conventional Facilities, Machine Detector Interface

October 3, 2024

ページ 212 をご覧ください。

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投稿 ID: 238

High energy plasma injector for f ⋯タイプ: Oral presentation (in person)

High energy plasma injector for future
electron-positron collider
2024 年 7 月 10 日水曜日 15:15 (15 分)
The next generation electron-positron collider is crucial for precision measurements of the Higgs
boson and exploring new physics beyond the Standard Model. Currently, the scale and cost of
linear or circular colliders based on traditional radio-frequency accelerators are enormous to meetthe standards for a Higgs factory. Advanced accelerator concepts such as the plasma wakefield
accelerator (PWFA) can provide acceleration gradient orders of magnitude higher than RF cavities,
which may greatly reduce the scale and cost of these facilities. At present, the state-of-the-art developments for these schemes fall short of achieving the beam parameters required by the collider.
We propose a hybrid electron-positron collider scheme which uses PWFA as a high energy injector
for the future collider. The plasma wakefield accelerators greatly boost the energy of the electron
and positron beams from the RF Linacs by multiple times before injecting them into the booster orcollider rings. Nearly start-to-end numerical simulations show that the final beam parameters of
the electron and positron beams fulfill the requirements of the booster. The developments in thisscheme can be a significant middle step towards the future plasma based linear colliders.

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主著者: ZHOU, Shiyu (Tsinghua University)
共著者: Prof. LU, Wei (Tsinghua University)
発表者: ZHOU, Shiyu (Tsinghua University)
セッション分類: Advanced Accelerator Concepts
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 213 をご覧ください。

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R&D of the EM Calorimeter Ener ⋯投稿 ID: 239

タイプ: Poster (in person)

R&D of the EM Calorimeter Energy Calibration with
Machine Learning based on the low-level features of
the Cluster
2024 年 7 月 8 日月曜日 17:40 (20 分)
We have developed the energy calibration method by using the machine learning for the ILC EM
calorimeter (ECAL), a sampling calorimeter consisting with Silicon-Tungsten layers.
In this method, we use deep neural network (DNN) to get the energy of the incident particle (energy
calibration), as a regression problem,
to improve the energy calibration resolution of ECAL.
We have developed the DNN architecture where cluster hit data are input as low-level features of
the cluster.
We’ll report the status of the R&D.

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Yes

主著者: MORIMASA, Suzuna (Osaka Metropolitan University)
共 著 者: NAGAHARA, Hajime (The University of Osaka); TANAKA, Junichi (CERN); SAITO,
Masahiko (ICEPP, The University of Tokyo); IWASAKI, Masako (Osaka City Univ. / RCNP, Osaka
Univ.); TAKEMURA, Noriko (Kyushu Institute of Technology); SUEHARA, Taikan (ICEPP, The University of Tokyo); NAKANO, Takashi (The University of Osaka); NAKASHIMA, Yuta (The University ofOsaka)
発表者: MORIMASA, Suzuna (Osaka Metropolitan University)
セッション分類: Posters
トラック種別: Physics and Detector: Software, Reconstruction, Computing

October 3, 2024

ページ 214 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 241

High-Gradient X-band Linac for ⋯タイプ: Oral presentation (remote)High-Gradient X-band Linac for Direct Electron
Radiation Therapy
2024 年 7 月 10 日水曜日 16:00 (30 分)
We report on cold test measurements of an X-band (11.424 GHz) accelerator to provide electron
beams for Very High Energy Electron therapy of cancer. The standing wave linac is designed with a
135° phase advance utilizing distributed coupling through four parallel manifolds. The accelerator
is expected to reach a 100 MeV/m accelerating gradient in a one-meter structure using only 19
MW when operating around 77 K. We will present measurements from a clamped benchtop testat room temperature of the assembled linac plates prior to bonding. These fabricated prototypes
will be diffusion bonded.

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主著者: SNIVELY, Emma (SLAC National Accelerator Laboratory); NANTISTA, Christopher (SLAC); LI,
Zenghai (SLAC); ORIUNNO, Marco (SLAC National Accelerator Laboratory (US)); Mr BOWDEN, Gordon (SLAC National Accelerator Laboratory); Dr BORZENETS, Valery (SLAC National Accelerator
Laboratory); SHUMAIL, Muhammad (SLAC); TANTAWI, Sami (SLAC)
発表者: SNIVELY, Emma (SLAC National Accelerator Laboratory)
セッション分類: Applications
トラック種別: Accelerator: Applications

October 3, 2024

ページ 215 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 242

Need of the hour: Carbon Utilized ⋯タイプ: Oral presentation (in person)

Need of the hour: Carbon Utilized Concrete (CUCO)
2024 年 7 月 9 日火曜日 17:15 (10 分)
Concrete, the quintessential construction material composed of cement, water, sand, and aggregates, is indispensable for infrastructure and societal advancement. As the threat of climate change
looms, the construction industry is striving to reduce the carbon emissions from concrete production. This study offers an in-depth analysis of practical applications and introduces advanced
technologies designed for mass production of eco-friendly, low-carbon concrete.
The research outlines three innovative strategies to reduce concrete’s carbon footprint. The first
substitutes traditional cement with industrial by-products like blast furnace slag, fly ash and recycled cement lowering associated carbon emission. The second employs cutting-edge admixturesthat promote CO2 absorption during curing, enabling CO2 mineralization within the concrete matrix. The carbonation curing not only sequesters CO2 but may also improve concrete’s material
properties. The third strategy integrates waste material processed using mineral carbonation technique and applied as sustainable aggregate alternatives.
The feasibility of above strategies needs to be supported by the development of green technologies
and specialized machinery. After years of comprehensive research regarding carbonation curingof concrete, the carbonation chamber, a sophisticated device that expedites the carbonation of
concrete has been developed. It provides a controlled CO2 rich environment for efficiently mineralizing CO2 from exhaust gases within concrete at an enhanced rate, effectively transforming
concrete into a carbon sink. Another significant advancement is the creation of large-scale carbonation reactors that collect calcium rich highly alkaline industrial effluents, followed by processing
and mineralizing CO2 into stable calcium carbonate. Furthermore, in-depth research is being conducted on development of methods so that by-product can be incorporated into concrete withoutcompromising its integrity and properties.

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主著者: AVADH, Kumar (Kajima Corporation)
共著者: Dr SAKAI, Goro (Kajima Corporation); Dr WATANABE, Kenzo (Kajima Corporation); Dr
TORICHIGAI, Takeshi (Kajima Corporation)

発表者: AVADH, Kumar (Kajima Corporation)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

ページ 216 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 243

Present status and plan on E- ⋯タイプ: Oral presentation (in person)

Present status and plan on E-driven positron source
for ILC
2024 年 7 月 10 日水曜日 11:00 (20 分)
Present status and plan on E-driven positron source for ILC
will be presented.
This talk might be a introduction to the several related topics by colleagues working on the project.

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主著者: Dr ENOMOTO, yoshinori (KEK)
発表者: Dr ENOMOTO, yoshinori (KEK)セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 217 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 245

Present design of ILC BDS
タイプ: Oral presentation (in person)

Present design of ILC BDS
2024 年 7 月 10 日水曜日 16:30 (15 分)
The current status and future development plans of ILC BDS will be explained.

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主著者: OKUGI, Toshiyuki (KEK)
発表者: OKUGI, Toshiyuki (KEK)セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 218 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 246

Present design of ILC DR
タイプ: Oral presentation (remote)Present design of ILC DR
2024 年 7 月 10 日水曜日 16:15 (15 分)
The present design of ILC DR will be presented.

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主著者: KUBO, Kiyoshi (KEK)
発表者: KUBO, Kiyoshi (KEK)セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 219 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 247

ATF2 status and operation 2023-2024
タイプ: Oral presentation (in person)

ATF2 status and operation 2023-2024
2024 年 7 月 9 日火曜日 11:00 (15 分)
ATF2 status and operation 2023-2024 will be presented.

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主著者: ARYSHEV, Alexander (KEK)
発表者: ARYSHEV, Alexander (KEK)セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 220 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 248

KEK ATF Linac and Damping Rin ⋯タイプ: Oral presentation (remote)

KEK ATF Linac and Damping Ring klystrons
High-Power RF field phase and amplitude stability
study
2024 年 7 月 9 日火曜日 11:30 (15 分)
KEK ATF Linac and Damping Ring klystrons High-Power RF field phase will be presented.

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主著者: Dr POPOV, Konstantin (KEK)
共著者: ARYSHEV, Alexander (KEK); Dr TERUNUMA, Nobuhiro (KEK)
発表者: Dr POPOV, Konstantin (KEK)セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 221 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 249

Wakefield study at ATF2 beamline
タイプ: Oral presentation (in person)

Wakefield study at ATF2 beamline
2024 年 7 月 9 日火曜日 11:15 (15 分)
Wakefield study at ATF2 beamline will be presented.

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主著者: Dr ABE, Yuki (KEK)
発表者: Dr ABE, Yuki (KEK)セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 222 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 250

Machine Learning studies at KEK
タイプ: Oral presentation (in person)

Machine Learning studies at KEK
2024 年 7 月 10 日水曜日 10:00 (20 分)
Machine Learning studies at KEK will be presented.

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主著者: Dr KURATA, Masakazu (KEK)
発表者: Dr KURATA, Masakazu (KEK)セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 223 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 251

Strategy for cavity R&D towards ⋯タイプ: Oral presentation (remote)

Strategy for cavity R&D towards an upgrade of theEuropean XFEL - current performance and the needfor a new specification
2024 年 7 月 10 日水曜日 17:00 (20 分)
Based on the success of the European XFEL srf cavity production, several projects worldwide(LCLS-2, SHINE, etc.) applied and further developed the underlying technology, specifically for
cw application with higher Q-value and moderate operation gradients up to 21 MV/m. For a highduty cycle (hcd) / cw upgrade of the European XFEL, it is required to preserve the high gradient
operation in the original pulsed mode aiming for gradients > 25 MV/m in addition to the need forhigh Q-values (˜3e10) at moderate gradients in hdc mode.
In the last years the focus at DESY to achieve this requirements is on the “Mid-T treatment” significantly simplifying the surface preparation process. A summary of results on single-cell cavities
will be presented.
In parallel, 15 years after the European XFEL specification for the cavity series production, DESY
identified its demand to adapt the specification to the actual state-of-the-art in srf technology, but
to keep the mandatory fundamentals including a consolidated contractor supervision. The orderof 10 new XFEL-type nine-cell cavities will allow to handover the know-how and a gain of experience to a (partially) new generation of experts. In an extensive test phase the results of the
Mid-T treatment R&D will be transferred to the cavities before they will be used to refurbish the
low-performing XFEL accelerator module XM99.

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主著者: RESCHKE, Detlef (DESY); STEDER, Lea (DESY)
発表者: RESCHKE, Detlef (DESY)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 224 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 252

Emittance tuning knobs for the M ⋯タイプ: Oral presentation (remote)Emittance tuning knobs for the Main Linac of CLIC
380 GeV2024 年 7 月 10 日水曜日 14:20 (20 分)
The high luminosity specifications for future linear colliders, such as the Compact Linear Collider (CLIC), require extremely small vertical beam emittance at the interaction point. Achieving
this relies on minimizing the emittance growth in the collider sub-systems. One major source ofemittance growth is in the Main Linac, mainly due to misaligned quadrupoles and accelerating
structures. The current budget for normalized emittance growth is 5 nm for static misalignments
and another 5 nm for dynamic imperfections. The budget for the static imperfections is achieved
through the use of beam-based alignment, such as one-to-one correction, dispersion-free steering,and the realignment of accelerating structures. In this work, we explore the use of additional emittance tuning bumps to further decrease the emittance growth and to provide additional leveragefor the tuning.

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主著者: Mr PASTUSHENKO, Andrii (CERN)
共著者: SCHULTE, Daniel (CERN)
発表者: Mr PASTUSHENKO, Andrii (CERN)
セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 225 をご覧ください。

International W ⋯ / 提出物レポート

The way forward

投稿 ID: 253

タイプ: 未指定

The way forward
2024 年 7 月 11 日木曜日 17:15 (15 分)

発表者: NAKADA, Tatsuya (EPFL - Ecole Polytechnique Federale Lausanne (CH))
セッション分類: Plenary

October 3, 2024

ページ 226 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 254

Electroweak measurements at the ⋯タイプ: Oral presentation (in person)

Electroweak measurements at the LHC and HL-LHC(Invited)
2024 年 7 月 10 日水曜日 9:00 (30 分)
Invited talk on the electroweak measurements at the LHC and HL-LHC.

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主著者: MAGNAN, Anne-Marie (Imperial College (GB))
発表者: MAGNAN, Anne-Marie (Imperial College (GB))
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 227 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 255

Higgs measurements at the LHC ⋯タイプ: Oral presentation (in person)

Higgs measurements at the LHC and HL-LHC(Invited)
2024 年 7 月 9 日火曜日 9:00 (30 分)
Invited talk on Higgs measurements at the LHC and HL-LHC

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主著者: ZHANG, Dengfeng (University of Sheffield (GB))
発表者: ZHANG, Dengfeng (University of Sheffield (GB))
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 228 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 256

The positron source of STCF in China
タイプ: Oral presentation (remote)

The positron source of STCF in China
2024 年 7 月 9 日火曜日 10:00 (20 分)
The proposal for a new generation high-luminosity electron-positron collider, the Super Tau-Charm
Facility (STCF), has been put forward in China. The STCF is expected to achieve a luminosity
greater than 0.5×1035 cm-2 s-1 and operate within a center-of-mass energy range of 2 to 7 GeV.
Considering the design challenges of the STCF collider ring, swap-out injection has been suggested
as one of the alternative injection methods to achieve the desired luminosity. Therefore, the STCF
injector will investigate both off-axis injection and swap-out injection methods concurrently. The
demand for positron injection charge under swap-out injection is much higher than that of offaxis injection, requiring at least 300nC/s positron injection. Two positron source designs for bothoff-axis and off-axis injection will be presented in this paper.

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主著者: ZHANG, Ailin (University of Science and Technology of China); Prof. PEI, Guoxi (Universityof Science and Technology of China); PENG, Haiping; LUO, Qing (University of Science and Technology
of China); XU, Xin (University of Science and Technology of China)
発表者: ZHANG, Ailin (University of Science and Technology of China)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 229 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 257

ECFA Study: Higgs Self-coupling
タイプ: Oral presentation (in person)

ECFA Study: Higgs Self-coupling2024 年 7 月 10 日水曜日 16:25 (20 分)
Invited talks on the ECFA Topic: Higgs self-coupling

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LIST, Jenny (Deutsches Elektronen-Synchrotron (DE)); DE BLAS, Jorge (Universidad deGranada (ES)); HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))

主著者:

発表者: HEINEMEYER, Sven (Consejo Superior de Investigaciones Cientificas (CSIC) (ES))
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 230 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 258

Nb3Sn on Cu thin film SRF caviti ⋯タイプ: Oral presentation (remote)Nb3Sn on Cu thin film SRF cavities for new
generation LINACS operating at 4.5 K
2024 年 7 月 10 日水曜日 16:40 (20 分)
Energy saving is mandatory for new generation linacs and accelerators more generally. Cryogenics
is one of the major energy costs in modern SRF accelerators because of the need to lower theoperating temperature to 2K. Substituting Nb with a higher critical-temperature superconductor,
such as Nb3Sn, allows operations to be moved up to 4.5 K with a reduction in cryogenic costs bya factor of 3. On I.FAST collaboration R&D activity cover all the cavity production chain with thegoal of producing the first prototype of a Nb3Sn on Cu 1.3 GHz elliptical cavity. This work willshow the results obtained at INFN LNL with Plasma Electrolytic Polishing for substrate preparationand the solutions adopted to optimize Nb3Sn coatings via DCMS. First RF measurements on planar
quadrupole resonator will also be shown and finally the scalability from small flat samples toelliptical cavity prototype will be also discussed in the conclusions.

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主著者: PIRA, Cristian (INFN LNL)
発表者: PIRA, Cristian (INFN LNL)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 231 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 259

Development of E-driven positron ⋯タイプ: Oral presentation (in person)

Development of E-driven positron target.
2024 年 7 月 10 日水曜日 11:40 (20 分)
Development of E-driven positron target.

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主著者: Mr MORIKAWA, Yu (KEK)
発表者: Mr MORIKAWA, Yu (KEK)セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 232 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 260

Positron source for CEPC
タイプ: Oral presentation (in person)

Positron source for CEPC
2024 年 7 月 9 日火曜日 9:00 (20 分)
The CEPC Linac is a normal conducting S-band and C-band combined Linac providing electron
and positron beams at an energy up to 30 GeV with 100 Hz repetition. The positron source of
CEPC adopts a conventional scheme, electron beam energy on the target is 4GeV with a 10nC
bunch charge. This talk will introduce the design of CEPC positron sources, including positron
generation, capture, pre-acceleration, and the positron damping ring. The development of key
components such as a flux concentrator and its solid-state modulator for CEPC positron source
will be discussed. Other research activities related to CEPC sources will also be mentioned.

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主著者: LI, Xiaoping (Institute of High Energy Physics, IHEP)
発表者: LI, Xiaoping (Institute of High Energy Physics, IHEP)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 233 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 261

APS cavity design for ILC E- ⋯タイプ: Oral presentation (in person)

APS cavity design for ILC E-driven positron capturelinac
2024 年 7 月 10 日水曜日 12:00 (20 分)
We present the design of an APS cavity for the capture linac of the ILC E-driven positron source.
It is required to accelerate a high-current multi-bunch positron beam in this positron source.
Therefore, beam loading compensation and managing the heat load exceeding 10 kW due to electromagnetic showers generated at the target are important issues. We have designed a 21-cell APS
accelerator, comprising 11 accelerating cells and 10 coupling cells with sufficient space for coolingchannels. This presentation will report on the current status of the APS cavity design.

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主著者: FUKUDA, Masafumi (KEK: High energy accelerator research organization)
発表者: FUKUDA, Masafumi (KEK: High energy accelerator research organization)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 234 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 262

Inovative Public Procurement
タイプ: Oral presentation (remote)

Inovative Public Procurement2024 年 7 月 9 日火曜日 14:35 (15 分)
Innovation procurement has become a key driver on delivering solutions to social challenges thatpublic sector is facing, including the need to modernise internal operations while delivering highquality public services.
Since 2018, Centro de Desarrollo Tecnológico y la Innovación (CDTI Innovation) has been boosting
Innovation and R&D through Pre-Commercial Procurement (PCP) instrument. The aim is to close
the gap of those solutions whose technology is not yet near-to-the-market but could be achieved
by financing R&D activities. CDTI Innovation obtains R&D services to develop first product orservice prototypes, in test serie modality, technologically innovative, and that meet public needs.
The prototype developed within this framework is transferred then the Public Entity interested in
the solution. To this end, Public Entities provides the needed environment for validation activities. However, the prototype will be used only as a technology demonstrator, in order to validate
technology, not for commercial purposes.
Far from being a fast-track approach towards overcoming challenges, PCP instruments faces several challenges towards its stablishment as a meeting point among R&D providers, solution providers,clients and users.

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主著者: DEL CORTE SANZ, Maite
発表者: DEL CORTE SANZ, Maite
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 235 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 263

Supercondtucting Thin Films on ⋯タイプ: Oral presentation (remote)Supercondtucting Thin Films on Higher Order Mode
Antennas to Increase the CW Performance of SRF
Cavities at MESA
2024 年 7 月 10 日水曜日 16:00 (20 分)
The Mainz Energy-recovering Superconducting Accelerator (MESA), an energy-recovering (ER)
LINAC, is currently under construction at the Institute for Nuclear physics at the Johannes GutenbergUniversität Mainz, Germany. In the ER operation mode, continuous wave (CW) beam is accelerated from 5 MeV up to 105 MeV. The energy gain of the beam is provided through 2 enhanced
ELBE-type cryomodules containing two 1.3 GHz 9-cell TESLA cavities each. By pushing the limitsof the beam current up to 10 mA, a quench can occur at the higher order modes (HOM) antennas. The quench is caused by the increased power deposition induced by the electron beam in ER
mode. Calculations have shown that an upgrade from 1 mA to 10 mA can increase the deposited
power in the HOMs up to 3080 mW. From this power approximately 30% will be present at the
HOM feedthrough and can be used as a thermal input. Previous simulations have shown a power
limit of 95 mW, which includes the power of a recirculating beam at 1 mA but is exceeded at 10
mA. A solution to increase the power limit is to coat the antennas with a superconducting thinfilms which provides higher critical fields, temperature, and currents. Nb_3 Sn and NbTiN are thematerial candidates . First simulations shown an increased power limit, which includes the limits
for MESA.

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主著者: HUG, Florian; PLATTNER, Paul (JGU Mainz); STENGLER, Timo
発表者: PLATTNER, Paul (JGU Mainz)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 236 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 264

Higgs self coupling: Theory status
タイプ: Oral presentation (remote)

Higgs self coupling: Theory status
2024 年 7 月 10 日水曜日 17:15 (25 分)
Invited talk on the status of the theory of the Higgs self coupling

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主著者: MCCULLOUGH, Matthew (CERN)
発表者: MCCULLOUGH, Matthew (CERN)
セッション分類: Higgs, Electroweak
トラック種別: Physics and Detector: Higgs, Electro-Weak

October 3, 2024

ページ 237 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 265

SuperKEKB positron beam tuning ⋯タイプ: Oral presentation (in person)

SuperKEKB positron beam tuning using ML
2024 年 7 月 9 日火曜日 9:40 (20 分)
In the KEK Injector Linac, four-ring simultaneous injection has been achieved, and beam tuningis always performed in various beam modes. The beam tuning is complicated with many tuning
knobs. We have developed an automatic tuning tool, which is realized by using Bayesian optimization and the downhill simplex method. It was especially useful in positron generation. I willreport on the implementation of the automatic tuning and some test results.

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主著者: NATSUI, Takuya (KEK)
発表者: NATSUI, Takuya (KEK)セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

ページ 238 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 266

Production status of power coupl ⋯タイプ: Oral presentation (in person)

Production status of power coupler in
MEXT-ATD/ITN
2024 年 7 月 9 日火曜日 11:20 (20 分)
At KEK, from FY2023, new 5-year plan for SRF technology development has started under MEXTATD program partly related to ITN. Power coupler is one of them, basically same as E-XFEL design.
We chose the ceramics material developed by collaboration of KEK-KYOCERA. And, we changedsome design from E-XFEL. We have done the RF simulation to evaluate the effect of these changes.
In FY2024, we will produce four sets of power coupler including connecting waveguide. We will
also perform necessary quality control/assurance using some samples. In this presentation, we
will report the recent progress.

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主著者: Dr KATAYAMA, Ryo (KEK)
発表者: Dr KATAYAMA, Ryo (KEK)セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 239 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 267

Cryomodule design and construc ⋯タイプ: Oral presentation (in person)

Cryomodule design and construction at KEK
2024 年 7 月 10 日水曜日 11:40 (15 分)
KEK is now constructing a cryomodule for 1.3 GHz TESLA cavities. Design of this cryomoduleand the status of construction will be presented in this talk.

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主著者: DOHMAE, Takeshi
発表者: DOHMAE, Takeshi
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 240 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 268

ILC Upgrade with Energy Revovery
タイプ: Oral presentation (in person)

ILC Upgrade with Energy Revovery
2024 年 7 月 10 日水曜日 9:40 (15 分)
Several proposals of e+e- colliders with energy recovery
concept have been proposed in the last few years. I shalldiscuss about possible upgrade of ILC in the far futureusing energy recovery linacs.

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主著者: YOKOYA, Kaoru
発表者: YOKOYA, Kaoru
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 241 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 269

The status of robotic clean assem ⋯タイプ: Oral presentation (in person)

The status of robotic clean assembly in KEK
2024 年 7 月 10 日水曜日 12:15 (15 分)
Robotic dust-free clean assembly is currently attracting worldwide attention, and KEK has purchased a Fanuc CRX-20iA/L and is conducting R&D for its application to ILC type string assembly.
The status of KEK’s
activity on the robotics will be presented in the presentation.

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主著者: YAMADA, Tomohiro (KEK)
発表者: YAMADA, Tomohiro (KEK)セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 242 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 270

Development of the RF power dis ⋯タイプ: Oral presentation (in person)

Development of the RF power distribution System
for the ILC Prototype Cryomodule2024 年 7 月 9 日火曜日 11:40 (20 分)
The RF power distribution system for the International Linear Collider (ILC) is redesigned basedon the updated requirements established in the scope of the ILC Technology Network (ITN) at
KEK. Its main features are a low center of gravity, a compact design, and a reduced number ofwaveguide components. The power distribution system design is updated to avoid interference
among various components in the case of future multi-cryomodule assembly. Furthermore, theconcept of a local power distribution system without a circulator was introduced, which was evaluated by analytical calculations, simulations, and low-power tests. The cryomodules integrated
with waveguide systems will be installed inside the tunnel. Therefore, a prototype waveguide support system was designed. A test assembly was conducted to gain a better understanding of theinstallation process and space requirements.

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主著者: JOSHI, Prakash (The Graduate University for Advanced Studies,SOKENDAI)
KAKO, Eiji (KEK); Dr OMET, Mathieu (High Energy Accelerator Research Organization (KEK)); MICHIZONO, Shinichiro (KEK); MATSUMOTO, Toshihiro; YAMAMOTO, Yasuchika(KEK)

共 著 者:

発表者: JOSHI, Prakash (The Graduate University for Advanced Studies,SOKENDAI)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 243 をご覧ください。

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IDT-WG3 steering group (closed)

投稿 ID: 271

タイプ: 未指定

IDT-WG3 steering group (closed)
2024 年 7 月 10 日水曜日 12:30 (1 時間 30 分)
https://agenda.linearcollider.org/event/10384/

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発表者: LIST, Jenny (Deutsches Elektronen-Synchrotron (DE))

October 3, 2024

ページ 244 をご覧ください。

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投稿 ID: 272

New TPCs with charge spreading ⋯タイプ: Oral presentation (in person)

New TPCs with charge spreading resistive
Micromegas for T2K near detector
2024 年 7 月 9 日火曜日 11:40 (20 分)
Two new TPCs have been installed and commissioned at JPARC, as part of the upgraded T2K neardetector long baseline neutrino experiment. It makes use of the ‘Encapsulated Resistive AnodeMicromegas’(ERAM) technology, developed in the last decade for the ILC TPC.
The characterization of the ERAM modules in X-ray tests, the modeling of the signal formationand of the charge spreading process, will be presented and confronted to direct surface resistivity
measurements. The lessons learned for the construction and operation of an ILC TPC, and theirlimits, will be presented.
First event displays of the new TPCs in the JPARC neutrino beam, and performance in dE/dx andspatial resolution measured in beam tests will be shown.

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主著者: Prof. COLAS, Paul (Université Paris-Saclay (FR))
発表者: Prof. COLAS, Paul (Université Paris-Saclay (FR))
セッション分類: Vertex, Tracking, Timing detectors
トラック種別: Physics and Detector: Vertex, Tracking, Timing

October 3, 2024

ページ 245 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 273

sX mapping system test at ORNL
タイプ: Oral presentation (in person)sX mapping system test at ORNL
2024 年 7 月 9 日火曜日 10:00 (20 分)
The Kyoto-KEK sX mapping system was applied to the vertical testing of a 805 MHz 6-cell SNS
high-beta cavity (HB60) aimed at localizing field emitters in the cavity. The test result will bepresented and implication to the on-going effort in the battle against field emission in current andfuture SRF cavities will be discussed.

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主著者:

Dr PIZZOL, Paolo (ORNL); GENG, Rongli (Jefferson Lab); IWASHITA, Yoshihisa (Kyoto

U.)

発表者: GENG, Rongli (Jefferson Lab)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 246 をご覧ください。

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投稿 ID: 274

Towards field emission free cavity ⋯タイプ: Oral presentation (in person)

Towards field emission free cavity processing andstring assembly at Fermilab2024 年 7 月 10 日水曜日 11:55 (20 分)
Cavities and cryomodules assembled at Fermilab have demonstrated unprecedented field emission(FE) free gradients. However, consistent FE-free performance is not guaranteed. Many lessons
were learned, and continued vigilance is a must. In addition, several improvements have been
identified to further push the state-of-the-art low particulate cavity processing and assembly at
Fermilab. Those included the optimization of nitrogen flow, robotic-assisted assembly, and lowparticulate fasteners. We share our latest results and vision for the future clean assemblies ofcavities and cryomodule strings.

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主著者: WU, Genfa
発表者: WU, Genfa
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 247 をご覧ください。

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投稿 ID: 275

ILC beamline update
タイプ: Oral presentation (remote)

ILC beamline update2024 年 7 月 10 日水曜日 9:40 (20 分)
The present ILC beamline will be presented.

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主著者: KUBO, Kiyoshi (KEK)
発表者: KUBO, Kiyoshi (KEK)セッション分類: Beam Dynamics
トラック種別: Accelerator: Beam dynamics

October 3, 2024

ページ 248 をご覧ください。

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Possible excess of the multi-lepton ⋯投稿 ID: 276

タイプ: Poster (in person)

Possible excess of the multi-lepton signal from dark
Higgs
2024 年 7 月 8 日月曜日 17:40 (20 分)
Recently, CMS group shows the data of the multi-muon signals. Two years ago, possible excess of
dimuon signal was reported in Moriond 2023. This year, four muon signal is reported in Moriond
2024. Both data indicates the excess level of 2σ. It is possible that these excesses are from Hidden
sector physics. We consider the way to account for the excesses by setting SM and 2 dark sector.
In the future Higgs factory, our scenario is expected to be tested by the event reconstruction inclean environment.

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Yes

主著者: KONDO, Dan; MURAYAMA, Hitoshi (University of California Berkeley (US))
発表者: KONDO, Dan
セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

ページ 249 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 277

Sources
タイプ: Oral presentation (in person)

Sources2024 年 7 月 11 日木曜日 11:00 (10 分)

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発表者: KURIKI, Masao; Prof. KURIKI, Masao (Hiroshima U./KEK)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 250 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 278

Damping rings, Beam delivery sy ⋯タイプ: Oral presentation (in person)

Damping rings, Beam delivery systems
2024 年 7 月 11 日木曜日 11:10 (10 分)

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発表者: OKUGI, Toshiyuki (KEK)セッション分類: Accelerator Plenary

October 3, 2024

ページ 251 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 279

Beam dynamics
タイプ: Oral presentation (in person)

Beam dynamics
2024 年 7 月 11 日木曜日 11:20 (10 分)

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発表者: LATINA, Andrea (CERN)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 252 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 280

Superconducting RF
タイプ: Oral presentation (in person)

Superconducting RF
2024 年 7 月 11 日木曜日 11:30 (10 分)

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発表者: YAMAMOTO, Yasuchika (KEK)セッション分類: Accelerator Plenary

October 3, 2024

ページ 253 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 281

Normal conducting RF
タイプ: Oral presentation (in person)

Normal conducting RF
2024 年 7 月 11 日木曜日 11:40 (10 分)

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発表者: ABE, Tetsuo
セッション分類: Accelerator Plenary

October 3, 2024

ページ 254 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 282

Advanced Accelerator Concepts
タイプ: Oral presentation (in person)

Advanced Accelerator Concepts
2024 年 7 月 11 日木曜日 11:50 (10 分)

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発表者: Dr HOGAN, Mark (SLAC)
セッション分類: Accelerator Plenary

October 3, 2024

ページ 255 をご覧ください。

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Applications

投稿 ID: 283

タイプ: Oral presentation (in person)

Applications
2024 年 7 月 11 日木曜日 12:00 (10 分)

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発表者: HONDA, Yosuke (KEK)セッション分類: Accelerator Plenary

October 3, 2024

ページ 256 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 284

Conventional Facilities, Machine ⋯タイプ: Oral presentation (in person)

Conventional Facilities, Machine Detector interface
2024 年 7 月 11 日木曜日 12:10 (10 分)

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発表者: POESCHL, Roman (Université Paris-Saclay (FR))
セッション分類: Accelerator Plenary

October 3, 2024

ページ 257 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 285

Higgs, Electroweak
タイプ: Oral presentation (in person)

Higgs, Electroweak
2024 年 7 月 11 日木曜日 11:00 (15 分)

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発表者: WILSON, Graham
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 258 をご覧ください。

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Top, QCD, Flavor, Precision Mod ⋯投稿 ID: 286

タイプ: 未指定

Top, QCD, Flavor, Precision Modelling2024 年 7 月 11 日木曜日 11:15 (15 分)

発表者: TAKEUCHI, Michihisa (Sun Yat-sen University)
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 259 をご覧ください。

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BSM, Global Interpretations

投稿 ID: 287

タイプ: 未指定

BSM, Global Interpretations
2024 年 7 月 11 日木曜日 11:30 (15 分)

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主著者: NOJIRI, mihoko
発表者: NOJIRI, mihoko
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 260 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 288

Vertex, Tracking, Timing detectors
タイプ: 未指定

Vertex, Tracking, Timing detectors
2024 年 7 月 11 日木曜日 11:45 (15 分)

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発表者: SCHWARTZMAN, Ariel Gustavo (SLAC National Accelerator Laboratory (US)); SCHWARTZMAN, Ariel

セッション分類: Physics & Detector plenary

October 3, 2024

ページ 261 をご覧ください。

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Calorimetry, Muon detectors

投稿 ID: 289

タイプ: 未指定

Calorimetry, Muon detectors
2024 年 7 月 11 日木曜日 12:00 (15 分)

発表者: BENHAMMOU, Yan (Tel Aviv University (IL))
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 262 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 290

Software, Reconstruction, Comp ⋯タイプ: 未指定

Software, Reconstruction, Computing
2024 年 7 月 11 日木曜日 12:15 (15 分)

発表者: HENSEL, Carsten (CBPF - Brazilian Center for Physics Research (BR))
セッション分類: Physics & Detector plenary

October 3, 2024

ページ 263 をご覧ください。

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ATF ICB/TB

投稿 ID: 291

タイプ: 未指定

ATF ICB/TB
2024 年 7 月 8 日月曜日 12:50 (1 時間 10 分)

発表者: Dr TERUNUMA, Nobuhiro (KEK)

October 3, 2024

ページ 264 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 292

High pressure gas safety and cav ⋯タイプ: Oral presentation (in person)

High pressure gas safety and cavity performance in
MEXT-ATD/ITN
2024 年 7 月 10 日水曜日 11:00 (20 分)
MEXT-ATD/ITN cavities will be fabricated under the high-pressrue gas safety (HPGS) act, refregeration safety regulations. Mechanical test for all the material and stress analysis of ITN/TESLA
cavity were performed. Application documents are almost ready for submission. Presentation is
given for the status of HPGS application, including proposal of cavity surface treatment.

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主著者: UMEMORI, Kensei (KEK)
発表者: UMEMORI, Kensei (KEK)セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 265 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 293

Status of fabrication of 9-cell cavities.
タイプ: Oral presentation (in person)

Status of fabrication of 9-cell cavities.
2024 年 7 月 9 日火曜日 9:40 (20 分)
We have the Cavity Fabrication Facility (CFF) at KEK. This facility was constructed to focus on
the fabrication of SRF Nb cavities. Recently we fabricated one FG-Nb 9-cell cavity which complies
with High Pressure Gas Safety code at CFF/KEK. We also are fabricating a 9-cell cavity with new
Nb material, Medium-Grain (MG) Nb, which has the Nb grain size of sub-mm. The presentation
reports the status of fabrication of 9-cell cavities at CFF/KEK.

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主著者: SAEKI, Takayuki (KEK)
発表者: SAEKI, Takayuki (KEK)セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 266 をご覧ください。

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Opening remarks

投稿 ID: 294

タイプ: 未指定

Opening remarks
2024 年 7 月 9 日火曜日 18:00 (10 分)

発表者: ISHINO, Masaya (University of Tokyo (JP))
セッション分類: Plenary

October 3, 2024

ページ 267 をご覧ください。

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Rolf Heuer

投稿 ID: 295

タイプ: 未指定

Rolf Heuer
2024 年 7 月 9 日火曜日 18:10 (10 分)

発表者: HEUER, Rolf (CERN)
セッション分類: Plenary

October 3, 2024

ページ 268 をご覧ください。

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Michael Peskin

投稿 ID: 296

タイプ: 未指定

Michael Peskin2024 年 7 月 9 日火曜日 18:20 (10 分)

発表者: PESKIN, Michael
セッション分類: Plenary

October 3, 2024

ページ 269 をご覧ください。

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Kiyotomo Kawagoe

投稿 ID: 297

タイプ: 未指定

Kiyotomo Kawagoe
2024 年 7 月 9 日火曜日 18:30 (10 分)

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主著者: KAWAGOE, Kiyotomo (Kobe university); KAWAGOE, Kiyotomo (Kyushu University (JP)); KAWAGOE, Kiyotomo (Kyushu University)
発表者: KAWAGOE, Kiyotomo (Kobe university); KAWAGOE, Kiyotomo (Kyushu University (JP)); KAWAGOE, Kiyotomo (Kyushu University)

セッション分類: Plenary

October 3, 2024

ページ 270 をご覧ください。

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Shion Chen

投稿 ID: 298

タイプ: 未指定

Shion Chen
2024 年 7 月 9 日火曜日 18:40 (10 分)

発表者: CHEN, Shion (Kyoto University (JP))
セッション分類: Plenary

October 3, 2024

ページ 271 をご覧ください。

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Andy White

投稿 ID: 299

タイプ: 未指定

Andy White
2024 年 7 月 9 日火曜日 18:50 (10 分)

発表者: WHITE, Andrew (University of Texas at Arlington (US)); WHITE, Andy
セッション分類: Plenary

October 3, 2024

ページ 272 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 300

Oxide dissolution and oxygen dif ⋯タイプ: Oral presentation (remote)

Oxide dissolution and oxygen diffusion scenarios in
niobium and implications on the Bean–Livingston
barrier in superconducting cavities
2024 年 7 月 9 日火曜日 9:00 (20 分)
We generalize a native Nb2O5 dissolution model [G. Ciovati, Appl. Phys. Lett. 89, 022507 (2006)] tosequential overlayer dissolutions, multilayer dissolution, and realistic temperature profiles, which
may be applicable to other materials. The model is applied to secondary ion mass spectrometry
depth profile measurements for varying temperature profiles and two-step oxide dissolution in Nb
and found to agree well. In the context of the Meissner screening response due to impurity profiles
on the length scale of the London penetration depth, the shallow diffusion of O impurities results
in a substantial decrease in the peak supercurrent density near the surface. In this framework,
oxide dissolution and oxygen diffusion can account for a rise in peak supportable magnetic fieldin SRF cavities with baking time and a suppression after the optimal baking time is reached, ingood agreement with peak-field baking temperatures and times as well as recent quench fieldmeasurements.

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主著者: LECHNER, Eric (Thomas Jefferson National Accelerator Facility)
発表者: LECHNER, Eric (Thomas Jefferson National Accelerator Facility)
セッション分類: Superconducting RF
トラック種別: Accelerator: Superconducting RF

October 3, 2024

ページ 273 をご覧ください。

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AWAKE: from proof-of-concept t ⋯投稿 ID: 301

タイプ: Poster (in person)

AWAKE: from proof-of-concept towards firstparticle-physics applications
2024 年 7 月 8 日月曜日 18:20 (20 分)
The AWAKE project at CERN makes use of plasma to transfer energy from the SPS proton beam toa short witness beam of electrons. We here give an overview of the project, from the exploitationof beam-plasma instabilities to generate large accelerating fields, to the next stages of the project,which will demonstrate sustained accelerating gradients and control of the witness bunch emittance. These developments will allow the first applications of AWAKE-like technology to particle
physics in the 2030s.

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主著者: FARMER, John Patrick (Max Planck Society (DE))
共著者: (AWAKE COLLABORATION)
発表者: FARMER, John Patrick (Max Planck Society (DE))
セッション分類: Posters
トラック種別: Accelerator: Advanced Accelerator Concepts

October 3, 2024

ページ 274 をご覧ください。

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投稿 ID: 302

Spanish Science Industry update
タイプ: Oral presentation (remote)Spanish Science Industry update2024 年 7 月 9 日火曜日 14:50 (15 分)
Spanish Science Industry is developing technology, components systems and subsystems for particle accelerators world wide. The relationship of the industry with the scientific and technologicalinstitutes in Spain makes possible the advance of critical technologies that will be applied in the
future accelerators as the International Linear Collider. During the presentation, key characteristics of Spanish Science Industry Sector and some developments related to advanced acceleratorsand specifically to ILC project will be presented

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主著者: FERNANDEZ, Erik (INEUSTAR)
発表者: FERNANDEZ, Erik (INEUSTAR)
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

ページ 275 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 303

State of the art in low-emittance s ⋯タイプ: Oral presentation (remote)State of the art in low-emittance storage rings and
CLIC DR design2024 年 7 月 10 日水曜日 16:00 (15 分)
State of the art in low-emittance storage rings will be presented.

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主著者: PAPAPHILIPPOU, Yannis (CERN)
発表者: PAPAPHILIPPOU, Yannis (CERN)
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 276 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 305

Status and plans of CLIC BDS
タイプ: Oral presentation (remote)

Status and plans of CLIC BDS
2024 年 7 月 10 日水曜日 16:45 (15 分)
Status and plans of CLIC BDS will be presented.

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主著者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES))
発表者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES))
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 277 をご覧ください。

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投稿 ID: 307

Ultra-low Beta* experimental stu ⋯タイプ: Oral presentation (remote)

Ultra-low Beta* experimental studies at ATF2 andfuture plans
2024 年 7 月 9 日火曜日 11:45 (15 分)
Ultra-low Beta* experimental studies at ATF2 and future plans will be presented.

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主著者: Mr PASTUSHENKO, Andrii (CERN)
共著者: MANOSPERTI, Enrico (Universitat Politecnica Catalunya (ES))
発表者: Mr PASTUSHENKO, Andrii (CERN)
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 278 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 308

ATF2 incoherent Cherenkov radi ⋯タイプ: Oral presentation (remote)ATF2 incoherent Cherenkov radiation monitor status
and plans2024 年 7 月 10 日水曜日 17:00 (15 分)
ATF2 incoherent Cherenkov radiation monitor status and plans will be presented.

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主著者: LASOCHA, Kacper (CERN)
共著者: MAZZONI, Stefano (CERN)
発表者: LASOCHA, Kacper (CERN)
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 279 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 309

ATF2 BPMs status and plans
タイプ: Oral presentation (remote)ATF2 BPMs status and plans
2024 年 7 月 10 日水曜日 17:15 (15 分)
ATF2 BPMs status and plans will be presented.

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主著者: LYAPIN, Alexey (John Adams Institute at Royal Holloway, University of London)
発表者: LYAPIN, Alexey (John Adams Institute at Royal Holloway, University of London)
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 280 をご覧ください。

International W ⋯ / 提出物レポート
投稿 ID: 310

ILC C-BPMs status and plans
タイプ: Oral presentation (remote)

ILC C-BPMs status and plans
2024 年 7 月 9 日火曜日 12:00 (15 分)
ILC C-BPMs status and plans will be presented.

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主著者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
発表者: PEDRAZA MOTAVITA, Laura Karina (IFIC (Universidad de Valencia - CSIC))
セッション分類: Damping rings, Beam delivery systems
トラック種別: Accelerator: Damping Rings & Beam Delivery System

October 3, 2024

ページ 281 をご覧ください。

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投稿 ID: 311

Update for undulator-based posit ⋯タイプ: Oral presentation (remote)

Update for undulator-based positron sources for ILC
and HALHF
2024 年 7 月 10 日水曜日 17:00 (20 分)
The undulator-based positron source is baseline design for the ILC. Recent progress in particularon the undulator masc designs, optic matching devices (R&D for prototypes for pulsed solenoid,
plasma lens) and on the target design (rotating wheel, material tests) are discussed. The adaptionof an undulator-based positron source for the HALHF design as an upgrade option for the ILC is
included as well.

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主著者: MOORTGAT-PICK, gudrid
共著者: SIEVERS, Peter; RIEMANN, Sabine (Deutsches Elektronen-Synchrotron (DE))
発表者: MOORTGAT-PICK, gudrid
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

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投稿 ID: 312

Mechanical design studies of the ⋯タイプ: Oral presentation (remote)Mechanical design studies of the pulsed solenoid for
positron sources
2024 年 7 月 10 日水曜日 17:20 (20 分)
We give a status report of prototyping a pulsed solenoid as an optic matching device for theundulator-based positron source of the ILC. In light of studies [1] and [2], we explore various
design possibilities for the pulse solenoid coil. It is proposed to rotate the coil turns at an angle
equal to the flare angle of the solenoid cone, which should improve the magnetic “looseness” of
the coil [3] and reduce the dissipation of magnetic flux through the inter-turn spiral gap.
Additionally, two alternative methods for securing the solenoid turns are considered. The first
involves independently fixing each adjacent turn to the next, rather than using a single element
to secure all turns simultaneously. The second method employs an external ceramic shell to holdthe turns in place.
[1] R&D for Positron Sources at High-Energy Lepton Colliders \\ Gudrid Moortgat-Pick, Sabine
Riemann, Peter Sievers, Carmen Tenholt[2] Mechanical and thermal stress on a pulsed solenoid for positron capture at the ILC undulatorbased positron source \\ C. Tenholt, G. Loisch, M. Mentink, M. Fukuda, G. Moortgat-Pick, T. Okugi,
S. Riemann, P. Sievers, K. Yokoya \\ LCWS2023, SLAC, US.
[3] Some problems of high field pulsed magnets development. \\ R. Lapik, P. Martyshkin, A. Yakutin

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主著者: Dr YAKOPOV, Grigory (DESY)
共著者: Prof. MOORTGAT-PICK, Gudrid (DESY, UHH); Dr SIEVERS, Peter (CERN); Dr RIEMANN,
Sabine (DESY); Dr DOEBERT, Steffen (CERN)
発表者: Dr YAKOPOV, Grigory (DESY)
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

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投稿 ID: 315

Summary of the ECR survey
タイプ: Oral presentation (in person)

Summary of the ECR survey
2024 年 7 月 11 日木曜日 9:45 (15 分)

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主著者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US)); MUSUMECI, Emanuela(Univ. of Valencia and CSIC (ES)); JACOBS, Ruth Magdalena (Deutsches Elektronen-Synchrotron(DE)); ABE, Yuki (SOKENDAI(KEK)); REICHENBACH, Leonhard (CERN / University of Bonn (DE)); HOMILLER,
Samuel; SAKAKI, Yasuhito (KEK); CHEN, Shion (Kyoto University (JP))
発表者: NTOUNIS, Dimitris (SLAC National Accelerator Laboratory (US)); MUSUMECI, Emanuela(Univ. of Valencia and CSIC (ES)); JACOBS, Ruth Magdalena (Deutsches Elektronen-Synchrotron(DE)); ABE, Yuki (SOKENDAI(KEK)); REICHENBACH, Leonhard (CERN / University of Bonn (DE)); HOMILLER,
Samuel; SAKAKI, Yasuhito (KEK); CHEN, Shion (Kyoto University (JP))
セッション分類: Early Career Researcher
トラック種別: ECR

October 3, 2024

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投稿 ID: 316

Prospect talk - Detector
タイプ: Oral presentation (in person)

Prospect talk - Detector
2024 年 7 月 11 日木曜日 9:30 (15 分)

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主著者: ENARI, Yuji (High Energy Accelerator Research Organization (JP))
発表者: ENARI, Yuji (High Energy Accelerator Research Organization (JP))
セッション分類: Early Career Researcher
トラック種別: ECR

October 3, 2024

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投稿 ID: 317

Q&A panel discussion
タイプ: Oral presentation (in person)

Q&A panel discussion
2024 年 7 月 11 日木曜日 10:00 (30 分)

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IRLES, Adrian (IFIC (CSIC/UV) Valencia); VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); MURAYAMA, Hitoshi (University of California Berkeley (US)); LIST, Jenny(Deutsches Elektronen-Synchrotron (DE)); Dr ENOMOTO, yoshinori (KEK)

主著者:

IRLES, Adrian (IFIC (CSIC/UV) Valencia); VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); MURAYAMA, Hitoshi (University of California Berkeley (US)); LIST, Jenny(Deutsches Elektronen-Synchrotron (DE)); Dr ENOMOTO, yoshinori (KEK)

発表者:

セッション分類: Early Career Researcher
トラック種別: ECR

October 3, 2024

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投稿 ID: 318

Prospect talk - Accelerator
タイプ: Oral presentation (in person)

Prospect talk - Accelerator
2024 年 7 月 11 日木曜日 9:15 (15 分)

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主著者: GESSNER, Spencer (SLAC)
発表者: GESSNER, Spencer (SLAC)
セッション分類: Early Career Researcher
トラック種別: ECR

October 3, 2024

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投稿 ID: 319

Prospect talk - Physics
タイプ: Oral presentation (in person)

Prospect talk - Physics
2024 年 7 月 11 日木曜日 9:00 (15 分)

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主著者: ABE, Tomohiro (Tokyo University of Science (JP))
発表者: ABE, Tomohiro (Tokyo University of Science (JP))
セッション分類: Early Career Researcher
トラック種別: ECR

October 3, 2024

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Remarks from Participants

投稿 ID: 321

タイプ: 未指定

Remarks from Participants
2024 年 7 月 9 日火曜日 19:00 (25 分)

セッション分類: Plenary

October 3, 2024

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Closing

投稿 ID: 322

タイプ: 未指定

Closing2024 年 7 月 9 日火曜日 19:25 (5 分)

発表者: Prof. MORI, Toshinori (University of Tokyo (JP))
セッション分類: Plenary

October 3, 2024

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On the PMNS matrix: symmetry ⋯投稿 ID: 323

タイプ: Poster (in person)

On the PMNS matrix: symmetry and non-unitarity
2024 年 7 月 8 日月曜日 18:00 (20 分)
Neutrino oscillation is a phenomenon where the neutrino oscillates between its flavor states while
propagating. This comes as a result of neutrino flavor states being eigenstates of the weak interaction Hamiltonian but not of the propagation Hamiltonian. The latter possesses different eigenstatescalled the mass states. The change of basis between these states is described by a unitary matrix
called the PMNS matrix. The PMNS matrix can be parametrized by three mixing angles and a CP
violation phase. In this project we discuss two different aspects of this matrix: symmetry and nonunitarity. The symmetry aspect refers to the existence of a certain pattern within the oscillation
parameters. The non-unitarity part in its turn aims at assessing the unitarity of the PMNS matrix
providing an indirect search for sterile neutrinos. We endeavor to implement and assess these
aspects using the P-theta framework developed by the T2K collaboration. This latter integrates
the systematic parameters of T2K and HK with oscillation parameters in order to give predictions
to be compared with data.

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主著者: Mr CHAHLAOUI, Ahmed (ICRR, The University of Tokyo); Mr MAAITAT, Aymane (ICRR,The University of Tokyo)

発表者: Mr CHAHLAOUI, Ahmed (ICRR, The University of Tokyo); Mr MAAITAT, Aymane (ICRR,The University of Tokyo)

セッション分類: Posters
トラック種別: Physics and Detector: BSM, Global Interpretations

October 3, 2024

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投稿 ID: 324

Update on the FCC-ee Positron S ⋯タイプ: Oral presentation (remote)

Update on the FCC-ee Positron Source
2024 年 7 月 10 日水曜日 17:40 (20 分)
Studies and R&D on the high-intensity positron source for the FCC-ee are ongoing as part of the
FCC Feasibility Study. The current baseline design relies on a conventional positron production
scheme. Recently, a feasibility study on using a superconducting (SC) solenoid for positron capture
has begun, with a design based on High-Temperature Superconductor (HTS) technology currently
adopted for the matching device. Simulation studies have been conducted to estimate the overall
performance of the positron source using the HTS solenoid capture system, compared to a systemusing a Flux Concentrator. Additionally, the conceptual design of a crystal-based positron source
for the FCC-ee is well advanced and will be discussed.
In this presentation, we will review the current status of the FCC-ee positron source design, highlighting recent research on positron production, the capture system, primary acceleration, andinjection into the damping ring.

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主著者: CHAIKOVSKA, Iryna (Université Paris-Saclay (FR))
発表者: CHAIKOVSKA, Iryna (Université Paris-Saclay (FR))
セッション分類: Sources
トラック種別: Accelerator: Sources

October 3, 2024

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City Development Activity by ILC ⋯投稿 ID: 325

タイプ: Poster (in person)

City Development Activity by ILC Vanguard
Initiative
2024 年 7 月 8 日月曜日 18:40 (20 分)
For the success of the International Linear Collider (ILC), it is crucial for the project to be accepted
and integrated within the local communities. This requires close cooperation between the ILC Laboratory and the surrounding municipalities to develop “next-generation city planning initiatives
triggered by the ILC” that bring extensive and diverse value to the region. Furthermore, it is important to demonstrate how these initiatives, spurred by the attraction of the ILC, can contributeto addressing social challenges faced by the Tohoku region, Japan and global society as a whole.
The ILC Vanguard Initiative Next Generation City Development Working Group aims to develop
a “model case for ILC city development.” This will help constituent municipalities understandthe concept of “ILC city development,” identify suitable approaches for their respective areas, andtranslate these concepts into concrete actions.
In today’s presentation, I will report on our activities and plans to date.

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主著者: Dr YAMASHITA, Satoru (Iwate Prefectural University)
発表者: Dr YAMASHITA, Satoru (Iwate Prefectural University)
セッション分類: Posters
トラック種別: Accelerator: Sustainability

October 3, 2024

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投稿 ID: 326

Whole Life Cycle Assessment ap ⋯タイプ: Oral presentation (remote)

Whole Life Cycle Assessment approach for linear
colliders2024 年 7 月 9 日火曜日 16:45 (15 分)
Arup is working with CERN and KEK to evaluate and understand the environmental impact of
three linear collider options, the Compact Linear Collider (CLIC) Drive Beam and Klystron, andthe International Linear Collider (ILC). The first phase of this study concluded in 2023 which evaluated the construction environmental impacts of CLIC and ILC. Phase 2 started in early 2024 which
includes the construction environmental impacts of the tunnel service systems and injector complex, and whole life cycle environmental impacts of the machine componentry. This talk will cover
the whole Life Cycle Assessment (LCA) approach, high level overview Phase 1 LCA results, andthe progress towards completing the Phase 2 LCA for the tunnel service systems, injector complex
and machine componentry.

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主著者: EVANS, Suzanne (ARUP)
発表者: EVANS, Suzanne (ARUP)
セッション分類: Industry
トラック種別: Accelerator: Sustainability

October 3, 2024

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The performance evaluation of 1.3 ⋯投稿 ID: 327

タイプ: Poster (in person)

The performance evaluation of 1.3 GHz 9-cell
Tesla-type cavity
2024 年 7 月 8 日月曜日 19:00 (20 分)
Superconducting radio-frequency cavities made of pure bulk niobium (Nb) is an essential tool inmodern accelerator science and technology. Nb superconducting radio-frequency (SRF) cavities
can extremely efficiently accelerate charged particles. At the High Energy Accelerator Research
Organization(KEK), Tesla-shaped 1.3 GHz Nb SRF cavities has been developed for next-generation
accelerator experiments such as the International Liner Collider (ILC). The surface treatment is
key for achieving the high performance of the Nb SRF cavity. In this study, we evaluated theperformance of one Tesla-shaped 1.3 GHz Nb SRF cavity at KEK (KEK6). We treated KEK6 withthe standard surface treatment: the cavity is treated by electropolishing, high-pressure ultrapure
water rinsing, annealing, and 120 ℃ baking. Finally, we evaluated the cavity performance at thevertical test stand at KEK STF twice. We will report on the results in this presentation.

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主著者: TSUMURA, Shusaku (Kyushu University)
共著者: UMEMORI, Kensei (KEK); KATAYAMA, ryo (The University of Tokyo)
発表者: TSUMURA, Shusaku (Kyushu University)
セッション分類: Posters
トラック種別: Accelerator: Superconducting RF

October 3, 2024

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投稿 ID: 328

Introduction and LDG working g ⋯タイプ: Oral presentation (in person)

Introduction and LDG working group on
sustainability
2024 年 7 月 9 日火曜日 13:00 (20 分)
An
introduction to the Industrial Forum on Accelerator Technologies and Advanced Instrumentation for Future Linear Colliders and Sustainability Plenary session will be given. Experiencefrom the previous LCWS workshops will be summarized. This talk is also intended to highlight theefforts ongoing within the LDG WG on “Sustainability Assessment of Future Accelerators” and toreceive a feedback on the initiative from the HEP community.

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主著者: TITOV, Maksym (Université Paris-Saclay (FR))
発表者: TITOV, Maksym (Université Paris-Saclay (FR))
セッション分類: Industry
トラック種別: Accelerator: Industry

October 3, 2024

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投稿 ID: 329

Introduction and Kick-off Presen ⋯タイプ: Oral presentation (in person)

Introduction and Kick-off Presentations
2024 年 7 月 8 日月曜日 16:00 (45 分)
Intro (J. List)
Topic 1: Stages and physics goals from 91 GeV to 800-1000 GeV (M.Peskin)
Topic 2: ILC at CERN compared to FCC-ee (R.Pöschl)
Topic 3: SCRF / ILC-like realization of full physics program 91-1000 GeV (S. Michizono)
Topic 4: CLIC/C3 realization of full physics program as upgrade of ILC250 (S.Stapnes)
Topic 5: RELIC upgrade of ILC250 and physics need for higher luminosity (V.Litvinenko)
Topic 6: Realizations of the full physics program with plasma wakefield upgrade of ILC250 (B.Foster)
Topic 7: Beyond-collider program (M.Nojiri)
Topic 8: Implications for exploring the 10 TeV parton energy scale (D.Schulte)

発 表 者: FOSTER, Brian (University of Oxford (GB)); SCHULTE, Daniel (CERN); LIST, Jenny(Deutsches Elektronen-Synchrotron (DE)); PESKIN, Michael; POESCHL, Roman (Université Paris-Saclay(FR)); MICHIZONO, Shinichiro (KEK); STAPNES, Steinar (CERN); LITVINENKO, Vladimir (Stony
Brook Univeristy); NOJIRI, mihoko
セッション分類: Plenary

October 3, 2024

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投稿 ID: 330

Plenary discussion
タイプ: Oral presentation (in person)

Plenary discussion
2024 年 7 月 8 日月曜日 16:45 (45 分)
Connect online athttps://slido.com\#2754 288

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発表者: ROBSON, Aidan (University of Glasgow (GB)); VERNIERI, Caterina (SLAC National Accelerator Laboratory (US)); LIST, Jenny (Deutsches Elektronen-Synchrotron (DE))
セッション分類: Plenary

October 3, 2024

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sign-up

投稿 ID: 331

タイプ: 未指定

sign-up
Sign up for lunch at https://forms.gle/fgMe2XdWMSfMQKsA7(Lunch cost paid by participants)

セッション分類: Early Career Researcher

October 3, 2024

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投稿 ID: 332

Sanjo hall: power socket instructions
タイプ: 未指定

Sanjo hall: power socket instructions
2024 年 7 月 10 日水曜日 9:15 (1 分)

発表者: JEANS, Daniel
セッション分類: BSM, Global Interpretations

October 3, 2024

ページ 300 をご覧ください。