bluuebunny/crossref_metadata_2025_split huggingface dataset:
CPT violation in neutrino oscillations
Authors: Ternes Christoph Andreas 
Published: February 2022

Abstract
In this talk I consider CPT violating neutrino oscillations in its most general form, i.e. assuming different oscillation parameters for neutrinos and antineutrinos. In this scenario the measurement of oscillation parameters is much more difficult than in the standard case. I will discuss the implication on the recent CP measurements in T2K and NOυA, and also discuss how well current experiments can bound different neutrino and antineutrino parameters. Finally, I will discuss how well the upcoming DUNE experiment might improve the current bounds.
Measuring high-energy neutrinos with FASERυ in the LHC Run-3
Authors: Kose Umut 
Published: February 2022

Abstract
FASERυ at the Large Hadron Collider, LHC, is designed to directly detect collider neutrinos for the first time and study their cross sections at high energies, where no such measurements currently exist. The detector will be located in the far-forward region of ATLAS. Deployment on the beam collision axis maximizes the flux of all three neutrino flavors, and allows FASER to measure their interaction cross-sections in the currently unexplored TeV energy range. For electron and tau neutrinos, these measurements will extend existing cross section measurements to significantly higher energies. In 2018 we performed a pilot run with the aims of measuring particle fluxes at the proposed detector location and of possibly detecting neutrino interactions for the first time at the LHC. We installed a 30-kg lead/tungsten emulsion detector and collected data of 12.2 fb1. The analysis of this data has yielded several neutrino interaction candidates, excluding the no-signal hypothesis at the 2/sigma level. During Run-3 of the LHC starting from 2022, we will deploy an emulsion detector with a target mass of 1.1 tons, coupled with the FASER magnetic spectrometer. This would yield roughly 2000 υ
e, 8000 υ
μ, and 50 υ
τ interacting in the detector. We present the status and prospects of FASERυ, as well as the neutrino detection in the pilot run data.
Model-independent test of T violation in neutrino oscillations
Authors: Segarra Alejandro , Schwetz Thomas 
Published: February 2022

Abstract
We propose a method to establish time reversal symmetry violation at future neutrino oscillation experiments in a largely model-independent way. We introduce a general parametrization of flavour transition probabilities which holds under weak assumptions and covers a large class of new-physics scenarios. This can be used to search for the presence of T-odd components in the transition probabilities by comparing data at different baselines but at the same neutrino energies. We show that this test can be performed already with experiments at three different baselines and might be feasible with experiments under preparation/consideration.
Neutrinos : from the r-process to the diffuse supernova neutrino background
Authors: Volpe Maria Cristina 
Published: February 2022

Abstract
Neutrinos from dense environments are connected to the longstanding open questions of how massive stars explode and what are the sites where r-process elements are made. Flavor evolution and neutrino properties can influence nucleosynthetic abundances. GW170817 has given indirect evidence for r-process elements in binary neutron star mergers. We discuss the impact of non-standard interactions in such sites. Nearby compact objects, strong gravitational fields are present. We discuss their influence upon neutrino decoherence in a wave packet treatment of neutrino propagation. We conclude by mentioning the upcoming measurement of the diffuse supernova neutrino background.
Probing exotic neutrino physics with CEvNS
Authors: Miranda O. G. , Papoulias D.K. , Sanchez Garcia G. , Sanders O. , Tórtola M. , Valle J. W. F. 
Published: February 2022

Abstract
A new measurement of coherent elastic neutrino-nucleus scattering (CEvNS) on liquid argon (LAr) has been recently reported by the COHERENT experiment. Relying on the new data, we update the status of CEvNS-induced constraints by considering various physics applications, within and beyond the Standard Model. In particular, we explore the implications of the COHERENT-LAr data for electroweak and nuclear physics as well as for interesting scenarios beyond the SM such as NSIs and electromagnetic neutrino properties. We show that compared to the existing constraints derived from the first CEvNS measurement on CsI, the new LAr-dataset yields improved constraints in all cases.
SNEWS: A SuperNova Early Warning System in the multi-messenger era
Authors: Molla Marta Colomer 
Published: February 2022

Abstract
Since 1987, astronomers and physicists from different domains have been awaiting for the next supernova explosion in our Galaxy. Core collapse supernovae (CCSN) are among the most precious multi-messenger (MM) events of the extreme Universe. These events are extremely rare, and it will be crucial to gather all the physics possible from the data of the next event. The SNEWS public alert system was designed with the aim of providing an early alert to astronomers and other observers about the observation of neutrinos from a Galactic CCSN, which are produced minutes to hours before the electromagnetic radiation. SNEWS has been operating for more than two decades, searching for a coincident signal between neutrino experiments from all around the world. In the current era of MM astrophysics, there are new opportunities for SNEWS to optimize the science reach from the next Galactic supernova beyond the simple early alert. In this talk, the upgrades and new capabilities of SNEWS2.0 will be discussed.
Status of Neutrino Elastic-scattering Observation with NaI(Tl) experiment
Authors: Lee I. S. 
Published: February 2022

Abstract
Coherent elastic neutrino-nucleus scattering (CE υNS) has an important role in measuring neutrino properties and proving non-standard interactions. Neutrino Elastic-scattering Observation with NaI(Tl) experiment (NEON) aims to detect this CE υNS in a NaI(Tl) crystal using reactor anti-electron neutrino at Hanbit nuclear power plant. NEON detector, which is installed 24 m distance away from the active reactor core, consists of a 15 kg NaI(Tl) in the radiation shielding structures including a 700 L liquid scintillator. Data taking has started from December 2020, which includes 1-month reactor-off period. We report the current status of NEON experiment in this talk.
The Stereo search for a sterile neutrino at the ILL reactor with full data sample
Authors: Labit Loïc-René 
Published: February 2022

Abstract
During the last decades, several parameters describing the neutrino oscillation phenomenon have been characterized thanks to reactor neutrino experiments, in particular the precise measurement of the last-to-be-measured mixing angle θ
13. Following a reactor antineutrino flux re-estimation in 2011, a 6% deficit between observed and predicted reactor antineutrino fluxes, known as the Reactor Antineutrino Anomaly, has been observed. The Reactor Antineutrino Anomaly could be explained by an oscillation toward an additional non-interacting, (thus “sterile”) neutrino. The parameters that best explain the RAA are a mixing angle value of sin2 (2θnew
) = 0.17 and a mass splitting value of

Δ

m

41

2

=
2.3

eV

2

. Additionally, a discrepancy between the measured and predicted antineutrino energy spectrum taking the form of an excess of events around 5 MeV has been observed by several reactor neutrino experiments. This discrepancy has yet to be fully understood but could be caused by incorrect predictions of the neutrino spectra. The STEREO experiment, located at Institut Laue-Langevin in Grenoble (France), was designed to test the above mentioned oscillation hypothesis independently of shape and rate predictions. The segmented detector, located at ∼10 m of a compact reactor core, allows for a measurement of the antineutrino energy spectrum at various baselines, sensitive to the oscillation toward a sterile neutrino that would distort the spectrum differently at each baseline. The experiment could also help to disentangle isotopic contributions to the neutrino energy spectrum by providing a measurement of the spectrum shape and rate originating from a core with highly enriched (93%)235U. The experiment took data between November 2016 and November 2020. This talk will present the latest limits set in the oscillation parameter space with the full data sample, amounting to 334 (544) days of reactor-on (off), as well as the updated rate and spectrum shape measurements.
The Outreach and Education program of the Darkside experiment
Authors: Bottino Bianca 
Published: February 2022

Abstract
The Darkside experiment aims at the direct detection of Dark Matter in the form of Weakly Interacting Massive Particles (WIMPs). It is a 20-tonne (fiducial) argon dual-phase Time-Projection Chamber (TPC) that exploits the cryogenic SiPM technology to identify unambiguously the nuclear recoils induced by WIMPs. The experiment is being installed at the INFN Gran Sasso National Laboratories, in Italy, and will start operation around 2024. The goal of the Outreach and Education program of DarkSide is to disseminate the experiment activity through promotional videos and events addressed to the general public and students. One of our main activities is the DarkSide Masterclass, in which high school students become physicists for a day searching for WIMPs. After a few introductory lectures, the students analyze real data from the precursor DarkSide-50 experiment. Master degree students have access to a more complex version of this Masterclass. Six Masterclass events took place in the last two years, with the participation reaching 400 students in one event. In this talk, we will present the detailed Outreach and Education program of Darkside Collaboration.
Underground muon flux measured by EEE students
Authors: Boi S , Abbrescia M , Avanzini C , Baldini L , Baldini Ferroli R , Batignani G , Battaglieri M , Bossini E , Carnesecchi F , Cicalò C , Cifarelli L , Coccetti F , Coccia E , Corvaglia A , De Gruttola D , De Pasquale S , Fabbri F , Galante L , Garbini M , Gemme G , Gnesi I , Grazzi S , Hatzifotiadou D , La Rocca P , Liu Z , Mandaglio G , Maron G , Mazziotta M N , Mulliri A , Nania R , Noferini F , Nozzoli F , Palmonari F , Panareo M , Panetta M P , Paoletti R , Pellegrino C , Pinazza O , Pinto C , Pisano S , Riggi F , Righini G C , Ripoli C , Rizzi M , Sartorelli G , Scapparone E , Schioppa M , Scribano A , Selvi M , Serri G , Squarcia S , Taiuti M , Terreni G , Trifirò A , Trimarchi M , Vistoli C , Votano L , Williams M C S , Zichichi A , Zuyeuski R 
Published: February 2022

Abstract
The Extreme Energy Events experiment (EEE) is a cosmic ray observatory made of about 60 muon telescopes based on Multigap Resistive Plate Chamber (MRPC) detectors. The EEE experiment has two main targets: a scientific and a dissemination. The EEE collaboration has also developed a large set of portable scintillator-based detectors, named Cosmic Box (CB), mainly used for educational purposes. The CB allows students to perform cosmic ray counting measurements in several environments. CBs are made of two 15 × 15 × 1 cm scintillators read by two 3 × 3 mm2 SiPMs operated in coincidence. Three CBs were deployed in Nuraxi Figus and Seruci coal mine to perform an underground measurement of the cosmic muon flux attenuation. High school and university students were directly involved in all the stages of the measurements: from the preliminary measurements to the on-site work and data analysis.
γ-ray high sensitivity tests of Collapse Models
Authors: Piscicchia Kristian , Bazzi Massimiliano , Bragadireanu Mario , Cargnelli Michael , Clozza Alberto , Paolis Luca De , Grande Raffaele Del , Guaraldo Carlo , Iliescu Mihail , Laubenstein Matthias , Marton Johann , Miliucci Marco , Napolitano Fabrizio , Porcelli Alessio , Scordo Alessandro , Sgarmella Francesco , Shi Hexi , Sirghi Diana Laura , Sirghi Florin , Doce Oton Vazquez , Zmeskal Johann , Curceanu Catalina 
Published: February 2022

Abstract
The article reviews our recent experimental results on the Continuous Spontaneous Localization (CSL) model and on the gravity related collapse model developed by Diósi and Penrose (DP). These models of dynamical reduction of the wave function consist in non-linear and stochastic modifications of the Schröedinger equation, which lead to a progressive breakdown of the superposition principle, as the size of the system increases. We performed a high sensitivity survey of the spontaneous radiation phenomenon, predicted by the collapse models, at the Gran Sasso underground National Laboratory of INFN in Italy. Our studies set the strongest bounds on the CSL parameters, in a broad region of the parameters space, and rule out the DP in its present formulation.
Status and prospect of China Jinping Underground Laboratory
Authors: Ma Hao , Dai Wenhan , Zeng Zhi , Xue Tao , Yang Litao , Yue Qian , Cheng Jianping 
Published: February 2022

Abstract
China Jinping underground laboratory (CJPL) is located in the Jinping Mountain, Sichuan Province, southwest China, with a rock overburden of about 2400m, and it is currently the deepest underground laboratory in the world, and will become one of the largest with the completion of its extension project (CJPL-II). Based on CJPL-II, the Deep Underground and ultra-low Radiation Background Facility for frontier physics experiments (DURF) was approved in November 2019 and started construction in December 2020. The scientific project at CJPL is mainly focused on dark matter detection, nuclear astrophysics and low background screening techniques. Currently, China Dark matter Experiments (CDEX) and Particle and Astrophysics Xenon Experiments (PandaX) are conducting dark matter searching at CJPL and more experiments are planed or proposed to stationed in CJPL-II in the future.
Behaviour of the lateral shower age of cosmic ray extensive air showers
Authors: Dey Rajat K. , Basak Animesh 
Published: February 2022

Abstract
Some simple arguments are introduced for a possible explanation of the behavior of the lateral shower age of proton-initiated showers. The corresponding analytical treatment based on the proposed argument is then illustrated. Using the Monte Carlo simulation (MC) code CORSIKA, we have validated how the different characteristics associated with the lateral shower age predicted in the present analytical parametrization, can be understood. The lateral shower age of a proton-initiated shower and its correlations with the lateral shower ages of electron- and neutral pion-initiated showers supports the idea that the result of superposition of several electromagnetic sub-showers initiated by neutral pions might produce the lateral density distribution of electrons of a proton initiated shower. It is also noticed with the simulated data that the stated feature still persists even in the local shower age representation.
BSM sources of CP violation at future long baseline experiments
Authors: Giarnetti A. 
Published: February 2022

Abstract
Different new physics models can introduce new sources of CP violation in the neutrino oscillation probabilities. We studied the potential of the DUNE experiment to look for them, in the case of sterile neutrinos and Non-Standard Interactions, measuring only the CP asymmetries in different oscillation channels. We show that if a high energy flux will be used, the asymmetry related to the νμ
→ νe
appearance channel could be very useful to search for hints of new physics.
Performance evaluation of 3 inch PMT for Hyper-Kamiokande
Authors: Kinoshita Tatsushi 
Published: February 2022

Abstract
Hyper-Kamiokande is a next generation water Cherenkov detector for the study of neutrino oscillations including the search for leptonic CP violation. In order to reduce the systematic uncertainty, a 1 kton scale intermediate water Cherenkov detector (IWCD) is planned to be constructed at around 1 km downstream the J-PARC neutrino beamline. The multi-PMT modules, which consist of 19 3 inch PMTs will be installed in the IWCD to improve the detector performance with their higher granularity. We have measured the characteristics of candidate 3-inch PMTs such as gain, peak to valley ratio, timing resolution and after pulses, and checked the impact to the detector performance.
Evaluation of neutron tagging performance in the Hyper-Kamiokande experiment
Authors: Izumiyama Shota 
Published: February 2022

Abstract
The Hyper-Kamiokande experiment is a next generation neutrino and nucleon-decay experiment. The experimental setup consists of a neutrino beam line and a huge Water Cherenkov detector. The detector is under construction towards the operation in 2027, and under optimization of its design especially around new photosensor modules, multi-PMTs. In this paper, I have evaluated a neutron tagging performance, which is one of the important techniques for the physics analysis, in the Water Cherenkov detector. The evaluation covers the relationship between the tagging efficiency and the configuration of the mPMTs.
Model independent approach to photodisintegration of 7
Li at the range of energies of interest to BBN
Authors: Aswathi V , Shastri Venkatarama , Shilpashree S P 
Published: February 2022

Abstract
One of the elements that was synthesized primordially in the standard Big Bang Nucleosynthesis is lithium. Lithium, being fragile gets easily destroyed at relatively low temperatures in the mixing process between stellar surface and hot internal layers. So that, at the end of the stellar lifetime the lithium content is believed to be depleted. Series of experimental measurements on lithium isotopes were carried out at High Intensity Gamma Ray Source (HIGS) at Duke Free Electron Laser Laboratory. More recently experiments [1]-[2] were performed, to measure the differential cross section of the photo-neutron reaction channel in photodisintegration of 7
Li, where the progeny nuclei is in the ground state as well as in excited states. The purpose of present contribution is to study the reaction channel 7
Li + γ → 6
Li + n using linearly polarized photons. The model independent irreducible tensor formalism [3]-[5] will be used to study the differential cross section of the reaction. We study the angular dependence of differential cross section by expressing differential cross section in terms of legendre polynomials. In view of the several theoretical and ongoing experimental studies, a detailed theoretical study of the spin structure of the amplitudes in 7
Li + γ → 6
Li + n and their expansion in terms of ’electric’ and ‘magnetic’ amplitudes is needed to analyze the measurements of spin observables as well as differential cross section, which leads to a better understanding of the problem at astrophysical energies
Transition neutrino magnetic moments in CEvNS
Authors: Bolton Patrick D. , Deppisch Frank F , Fridell Kåre , Harz Julia , Hati Chandan , Kulkarni Suchita 
Published: February 2022

Abstract
Coherent Elastic Neutrino Nucleus Scattering (CEυNS) is a novel technique to look for new physics beyond the Standard Model. We study the prospects of probing a transition magnetic moment in CEvNS experiments. Showing the NUCLEUS experiment as an example, we demonstrate that properties of a potential sterile neutrino can be deduced.
Quasi-Dirac neutrinos in the linear seesaw model
Authors: Arbeláez C , Dib C , Monsálvez-Pozo K , Schmidt I 
Published: February 2022

Abstract
We implement a minimal linear seesaw model (LSM) for addressing the Quasi-Dirac (QD) behaviour of heavy neutrinos, focusing on the mass regime of MN
≲ MW
. Here we show that for relatively low neutrino masses, covering the few GeV range, the same-sign to opposite-sign dilepton ratio, Rℓ, can be anywhere between 0 and 1, thus signaling a Quasi-Dirac regime. Particular values of Rℓ are controlled by the width of the QD neutrino and its mass splitting, the latter being equal to the light-neutrino mass mυ
in the LSM scenario. The current upper bound on m

υ1 together with the projected sensitivities of current and future |UNℓ
|2 experimental measurements, set stringent constraints on our low-scale QD mass regime. Some experimental prospects of testing the model by LHC displaced vertex searches are also discussed.
On the cosmological implications of the electroweak vacuum instability: constraining the non-minimal coupling with inflation
Authors: Mantziris Andreas 
Published: February 2022

Abstract
Our current measurements of the Standard Model parameters imply that the Higgs field resides in a metastable electroweak vacuum, where the vacuum can decay to a lower ground state, with cataclysmic repercussions for our Universe. According to our observations, no such event has happened in the observable universe, in spite of the various energetic processes that could have triggered it. This work serves as an overview of a method that uses the metastability of the false vacuum during cosmological inflation to provide constraints on the Higgs curvature coupling ξ. Considering also the effects of the time-dependent Hubble rate on the effective Higgs potential and on our past light-cone space-time geometry, results in state-of-the-art lower ξ-bounds from quadratic and quartic chaotic inflation, and Starobinsky-like power-law inflation.
Development of high-sensitivity radon detector in water for neutrino physics
Authors: Takeda Atsushi , Nakano Yuuki , Okamoto Kohei , Takeuchi Yasuo 
Published: February 2022

Abstract
The contamination of radon (222Rn) originated from the decay chain of the uranium series in water could be serious background source in underground particle physics experiments. We have been developing a system for continuous monitoring of radon in water. We developed a new high-sensitivity radon detector for water by combining an existing high-sensitivity 80 L radon detector for air and membrane degasifier module used for previous version of radon detector for water. The housing component for membrane degasifier has been improved. The background level of the new radon detector for water was measured and it was reduced by approximately half compared to the previous one.
Time Projection Chambers instrumented with resistive MicroMegas for the SAND near detector of DUNE
Authors: Granger Pierre 
Published: February 2022

Abstract
The Deep Underground Neutrino Experiment (DUNE) is a next-generation long-baseline neutrino accelerator experiment aiming for precise measurements of the neutrino oscillation parameters. DUNE will include a near detector complex regrouping three different detectors among which SAND (System for on-Axis Neutrino Detection) that will be the only one permanently on the neutrino beam axis in charge of monitoring in detail the emitted neutrino beam and its stability through time, a crucial characteristic to realize accurate oscillation measurements at the percent level. SAND will reuse the superconducting magnet and the electromagnetic calorimeter of the KLOE experiment. We will describe in the following the proposal of using, as inner tracker of SAND, a large 3D matrix of 1.5cm side scintillator cubes (3DST) surrounded by 3 gaseous Time Projection Chambers. This setup allows to realize accurate beam monitoring combining the 3DST unprecedented capability of neutron detection and energy measurement with the high precision momentum resolution for charged particles offered by the TPCs. The proposed TPC design allows to reach spatial resolutions of a few hundreds of micrometers using 1 cm pads by deploying the resistive MicroMegas technology for the charge readout.