bluuebunny/crossref_metadata_2025_split huggingface dataset:
The search for Light Dark Matter with NEWS-G
Authors: Durnford Daniel , Piro Marie-Cécile 
Published: February 2022

Abstract
The NEWS-G direct dark matter search experiment uses spherical proportional counters (SPC) with light noble gases to explore low WIMP masses. The first results obtained with an SPC prototype operated with Ne gas at the Laboratoire Souterrain de Modane (LSM) have already set competitive results for low-mass WIMPs. The forthcoming next phase of the experiment consists of a large 140 cm diameter SPC installed at SNOLAB with a new sensor design, with improved detector performance and data quality. Before its installation at SNOLAB, the detector was commissioned with pure methane gas at the LSM, with a temporary water shield, offering a hydrogen-rich target and reduced backgrounds. After giving an overview of the improvements of the detector, preliminary results of this campaign will be discussed, including UV laser and Ar-37 calibration data.
WimPyDD: an object-oriented Python code for WIMP-nucleus scattering direct detection in virtually any scenario
Authors: Tomar Gaurav , Jeong Injun , Kang Sunghyun , Scopel Stefano 
Published: February 2022

Abstract
We introduce WimPyDD, a modular, object-oriented and customisable Python code that accurately predicts the expected WIMP-nucleus scattering rates in WIMP direct-detection experiments including the response of the detector. WimPyDD utilises the framework of Galilean-invariant non-relativistic effective theory, allowing to handle an arbitrary number of effective operators, and can perform the calculation of the excepted rate in virtually any scenario, including inelastic scattering, WIMPs with an arbitrary spin, and a generic velocity distribution in the Galactic halo. The power and flexibility of WimPyDD is discussed in some explicit examples.
The Scoto-seesaw model: Dark matter and Stability
Authors: Mandal Sanjoy 
Published: February 2022

Abstract
We analyze the consistency of electroweak breaking, neutrino and dark matter phenomenology within the simplest scoto-seesaw model. The scoto-seesaw model can be obtained by adding the minimal dark sector to the simplest “missing partner” type-I seesaw. This way one has a physical picture for the neutrino oscillation lengths: the “atmospheric” mass scale arises from the tree-level seesaw, while the “solar” scale is induced radiatively, mediated by the dark sector. One also has a lower bound for the neutrinoless double beta decay amplitude 1.
Search for gamma-ray line emission from Dark Matter annihilation in the Galactic Centre with the MAGIC telescopes
Authors: Inada Tomohiro , Kerszberg Daniel , Hütten Moritz , Teshima Masahiro , Rico Javier , Ninci Daniele 
Published: February 2022

Abstract
We present a search for dark matter spectral lines in the Galactic Centre (GC) region with the MAGIC telescopes. The MAGIC telescopes, located on the Canary island of La Palma (Spain), are sensitive to photons in the energy range from 50 GeV to 50 TeV with low zenith angle observations. MAGIC has performed indirect dark matter searches with various astrophysical targets. Since the MAGIC telescopes are located in the northern hemisphere, the GC is visible only at high zenith angles. Observations at high zenith angles significantly increase the telescopes’ effective collection area, which boosts sensitivity for gamma rays in the TeV regime. We report the results obtained with more than 200 hours of high zenith angle observations of the GC region with MAGIC.
Quenching Factor consistency across several NaI(Tl) crystals
Authors: Cintas D. , An P. , Awe C. , Barbeau P. S. , Barbosa de Souza E. , Hedges S. , Jo J. H. , Martínez M. , Maruyama R. H. , Li L. , Rich G. C. , Runge J. , Sarsa M. L. , Thompson W. G. 
Published: February 2022

Abstract
Testing the DAMA/LIBRA annual modulation result independently of dark matter particle and halo models has been a challenge for twenty years. Using the same target material, NaI(Tl), is required and presently two experiments, ANAIS-112 and COSINE-100, are running for such a goal. A precise knowledge of the detector response to nuclear recoils is mandatory because this is the most likely channel to find the dark matter signal. The light produced by nuclear recoils is quenched with respect to that produced by electrons by a factor that has to be measured experimentally. However, current quenching factor measurements in NaI(Tl) crystals disagree within the energy region of interest for dark matter searches. To disentangle whether this discrepancy is due to intrinsic differences in the light response among different NaI(Tl) crystals, or has its origin in unaccounted for systematic effects will be key in the comparison among the different experiments. We present measurements of the quenching factors for five small NaI(Tl) crystals performed in the same experimental setup to control systematics. Quenching factor results are compatible between crystals and no clear dependence with energy is observed from 10 to 80 keVnr.
Planck scale multi-scattering dark matter in DEAP-3600
Authors: Lai Michela 
Published: February 2022

Abstract
Dark matter candidates at Planck scale masses might have been produced by many cosmological mechanisms in the early Universe. Underground detectors like DEAP-3600, designed for the search of Weakly Interacting Massive Particles, can actually be sensitive to these super-heavy dark matter candidates. The collaboration has performed a blind analysis of data from DEAP-3600 over 813 days of lifetime, by looking for a multi-scattering signal. As no event is found after the unblinding, leading exclusion limits are set, constraining dark matter in the mass range of (8.3 × 106 — 1.2 × 1019) GeV/c2, and dark matter-argon nucleus cross-sections in the range (1.0 × 10−23 — 2.4 × 10−18) cm2.
Ultralight dark matter searches with KAGRA gravitational wave telescope
Authors: Michimura Yuta , Fujita Tomohiro , Kume Jun’ya , Morisaki Soichiro , Nagano Koji , Nakatsuka Hiromasa , Nishizawa Atsushi , Obata Ippei 
Published: February 2022

Abstract
Among various dark matter candidates, bosonic ultralight fields with masses below 1eV are well motivated. Recently, a number of novel approaches have been put forward to search for ultralight dark matter candidates using laser interferometers at various scales. Those include our proposals to search for axion-like particles (ALPs) and vector fields with laser interferometric gravitational wave detectors. ALPs can be searched for by measuring the oscillating polarization rotation of laser light. Massive vector fields weakly coupled to the standard model sector can also be searched for by measuring the oscillating forces acting on the suspended mirrors of the interferometers. In this paper, the current status of the activities to search for such ultralight dark matter candidates using a gravitational wave detector in Japan, KAGRA, is reviewed. The analysis of data from KAGRA’s observing run in 2020 to search for vector dark matter, and the installation of polarization optics to the arm cavity transmission ports of the interferometer to search for ALPs in future observing runs are underway.
Search for dark matter signals toward the irregular dwarf galaxy WLM with H.E.S.S
Authors: Armand Céline , Moulin Emmanuel , Poireau Vincent , Rinchiuso Lucia 
Published: February 2022

Abstract
Cosmological and astrophysical probes suggest that dark matter (DM) makes up for 85% of the total matter of the Universe. The determination of its nature, however, remains one of the greatest challenges of fundamental Physics. In the DM indirect detection framework, Weakly Interacting Massive Particles (WIMPs) particles would produce signals by self-annihilating and creating SM products such as γ rays, which might be detected by ground-based telescopes. Dwarf irregular galaxies represent promising targets for the search for DM as they are assumed to be dark matter dominated. These dwarf irregular galaxies are rotationally supported with relatively simple and well measured kinematics which lead to small uncertainties on their dark matter distribution profiles. In 2018, the H.E.S.S. telescopes observed the irregular dwarf galaxy Wolf-Lundmark-Melotte (WLM) for 18 hours. These observations are the very first ones made by an imaging air Cherenkov telescope toward this kind of objects. We search for a DM signal looking for excess of γ rays towards WLM dwarf galaxy. We perform the first analysis of this source in stereoscopy using the data taken by the five H.E.S.S. telescopes. In this proceeding, we present the new results on the observations of WLM interpreted in terms of velocity-weighted cross-section for DM self-annihilation 〈συ〉 as a function of DM particle mχ
mass for the eight annihilation channels

W
+

W
−

,

Z
+

Z
−

,
b

b
¯

,
t

t
¯

,

e
+

e
−

,

μ
+

μ
−

,

τ
+

τ
−

, and γγ.
Search for long-duration transient gravitational waves from glitching pulsars during LIGO—Virgo third observing run
Authors: Modafferi Luana M. , Moragues Joan , Keitel David 
Published: February 2022

AbstractPulsars are spinning neutron stars which emit an electromagnetic beam. We expect pulsars to slowly decrease their rotational frequency. However, sudden increases of the rotational frequency have been observed from different pulsars. These events are called “glitches” and they are followed by a relaxation phase with timescales from days to months. Gravitational wave (GW) emission may follow these peculiar events. We give an overview of an analysis of GW data from the Advanced LIGO and Virgo third observing run (O3) searching for transient GW signals lasting hours to months after glitches in known pulsars. The search method consists of placing a template grid in frequency–spindown space with fixed grid spacings. Then, for each point we compute the transientF-statistic which is maximized over a set of transient parameters like the duration and start time of the potential signals. A threshold on the detection statistic is then set, and we search for peaks over the parameter space for each candidate.
Superconducting thin film spiral coils as low-noise cryogenic actuators
Authors: Ferreira E.C. , Bocchese F. , Badaracco F. , van Heijningen J.V. , Lucas S. , Perali A. 
Published: February 2022

Abstract
We present results on actuator development for a cryogenic superconducting inertial sensor with a displacement sensitivity of a few

fm
/

Hz

at 0.5 Hz. The first version will use niobium as sensor mechanics material. Niobium is sufficiently superconducting below 5 K allowing superconducting coils to form low-noise actuators as part of a force feedback sensing scheme. Future improvements include the use of silicon in combination with high temperature superconductors for even lower frequency fm/

fm
/

Hz

performance. This device will be the world’s most sensitive low-frequency inertial sensor. Here, we focus on its actuator, which ensures low-noise performance below 5 Hz by decreasing the mechanical loss and therefore thermal noise.
LST-1, the Large-Sized Telescope prototype of CTA. Status and first observations
Authors: Moralejo Abelardo 
Published: February 2022

Abstract
CTA (Cherenkov Telescope Array) is the next generation ground-based observatory for gamma-ray astronomy at very-high energies. Once completed, CTA will outperform present-day facilities by an order of magnitude in sensitivity, and significantly enlarge the accessible energy range and survey capabilities. Deployed in the CTA north site, on the island of La Palma (Spain), LST-1 is the prototype for the CTA Large-Sized Telescopes, which will cover the lower end of the energy range of the array, down to 20 GeV. LST-1 started astronomical observations in late 2019, and is currently completing its commissioning phase. We present the status of the instrument and an overview of the first physics results.
Multimessenger Astronomy of Transient Point Sources at the Pierre Auger Observatory
Authors: Ruehl Philip 
Published: February 2022

Abstract
One of the key challenges in astroparticle physics is the identification of the sources of cosmic rays at the highest energies (above 1018 eV). In this context, the search for neutral messenger particles in the ultra-high energy (UHE) regime is of high interest. The sources of the gravitational waves (GWs) that can be observed with the current generation of GW detectors provide extreme astrophysical environments that are most likely to be unique in the universe. Another extraordinary source candidate is the anomalous blazar TXS 0506+056 which has been found to be coincident with two periods of enhanced high-energy neutrino flux in 2014/15 and 2017 as reported by the IceCube Collaboration. Due to their distance and transient nature, the capabilities of these sources to produce UHE radiation can only be studied through neutral messengers like photons and neutrinos. The Pierre Auger Observatory near Malargue, Argentina, is the largest air shower experiment for the detection of ultra-high energy cosmic rays. With its surface detector, consisting of a grid of 1660 water-Cherenkov detectors covering an area of 3000 km2, it has a unique exposure to UHE photons and neutrinos and has published first constraints on these particles from GW sources and TXS 0506+056.
The Search for Ultra-High Energy Neutrinos through Highly Inclined Air Showers in the Pierre Auger Observatory
Authors: Parente Gonzalo 
Published: February 2022

Abstract
The Surface Detector of the Pierre Auger Observatory for the detection of ultra-high energy cosmic rays, an array of 1600 water-Cherenkov stations in a triangular grid with 1500 m separation between stations, has also the capability to detect neutrinos with energy above 1017eV. The identification, through the special characteristics of highly inclined showers, is efficiently performed for neutrinos of all flavours interacting deep in the atmosphere at large zenith angles as well as for τ-neutrinos skimming the Earth crust. In this talk I review the status of the neutrino search at the Observatory using about 15 years of data. Restrictive upper bounds on the neutrino flux from diffuse sources and from point-like steady sources were stablished, placing strong constraints on several models of neutrino production at EeV energies and on the properties of the sources of ultra-high-energy cosmic rays. Unrivaled sensitivity in searches for transient sources has been also achieved.
Gamma-ray image reconstruction of the Andromeda galaxy
Authors: Armand Céline , Calore Francesca 
Published: February 2022

AbstractWe analyze about 12 years ofFermi-LAT data in the direction of the Andromeda galaxy (M31). We robustly characterize its spectral and morphological properties against systematic uncertainties related to the modeling of the Galactic diffuse emission. We perform this work by adapting and exploiting the potential of the SkyFACT adaptive template fitting algorithm. We reconstruct theγ-ray imageof M31 in a template-independent way, and we show that flat spatial models are preferred by data, indicating an extension of the γ-ray emission of about 0.3 — 0.4° for the bulge of M31. This study also suggests that a second component, extending to at least 1°, contributes to the observed total emission. We quantify systematic uncertainties related to mis-modeling of Galactic foreground emission at the level of 2.9%.
A deuterated liquid scintillator for supernova neutrino detection
Authors: Chauhan Bhavesh 
Published: February 2022

Abstract
For the next galactic supernova, operational neutrino telescopes will measure the neutrino flux several hours before their optical counterparts. Existing detectors, relying mostly on charged current interactions, are mostly sensitive to and to a lesser extent to ve. In order to measure the flux of other flavors, we need to observe their neutral current interactions with the detector. Such a measurement is not only crucial for overall normalization of the supernova neutrino flux but also for understanding the intricate neutrino oscillation physics. A deuterium based detector will be sensitive to all neutrino flavors. In this paper, we propose a 1 kton deuterated liquid scintillator (DLS) based detector that will see about 435 neutral current events and 170 (108) charged current [INLINE] (fe) events from a fiducial supernova at a distance of 10 kpc from Earth. We explore the possibility of extracting spectral information from the neutral current channel by measuring the quenched kinetic energy of the proton in the final state, where the neutron in the final state is tagged and used to reduce backgrounds.
Antineutrino spectrometer DANSS — 5 years of running
Authors: Alekseev Igor 
Published: February 2022

Abstract
Solid scintillator antineutrino detector DANSS is placed on a movable platform below 3.1 GWth industrial reactor of the Kalininskaya Nuclear Power Plant. The distance between the detector and the center of the reactor core is frequently changed in the range 10.9 - 12.9 m. The reactor materials provide overburden of about 50 m.w.e. The one-cubic-meter sensitive volume of the detector is assembled from 2500 polystyrene scintillation strips and surrounded by a multilayer passive and active shielding. A dual readout by silicon photo multipliers (individually) and by convention PMTs (in groups of 50 strips) is used to achieve both high detector granularity and low noise trigger.
In the position closest to the reactor core up to 5000 inverse beta-decay events per day are collected with cosmic muons induced background below 2%. The talk covers 5 years of the detector operation, observation of fuel evolution and results of our search for light sterile neutrinos. Spectrum and counting rate dependence on the fission fuel composition is clearly observed and agrees with H-M model. No statistically significant signal of short baseline neutrino oscillations observed so far with large portion of oscillation phase space excluded taking into account the improved analysis of systematic errors. The exclusion region at 90% confidence level reaches sin22θ < 8. 10−3 around Δm
2 ∼ 0.9 eV2.
Astroparticle physics in DUNE with the X-ARAPUCA detectors
Authors: Brizzolari Claudia 
Published: February 2022

Abstract
DUNE is a long-baseline accelerator experiment in construction at Fermilab and SURF (South Dakota). The scientific program encompasses the investigation of long-baseline neutrino oscillation, with a focus on the study of the CP violation and neutrino mass hierarchy, along with high sensitivity searches for rare events, such as the observation of supernova neutrino bursts and the search for proton decay. The DUNE far detector consists of four liquid Argon TPCs located deep underground, paired with a Photon Detection System. In the present article we will discuss the role of the PDS in the search of the aforementioned rare events and the latest results in terms of technological achievements obtained by the PDS Consortium.
Astrophysical neutrino self-interactions in the high-statistics era
Authors: Esteban Ivan , Pandey Sujata , Brdar Vedran , Beacom John F. 
Published: February 2022

Abstract
Do neutrinos have sizable self-interactions? They might. Laboratory constraints are weak, so strong effects are possible in astrophysical environments and the early universe. Observations with neutrino telescopes can provide an independent probe of neutrino self (“secret”) interactions, as the sources are distant and the cosmic neutrino background intervenes. We define a roadmap for making decisive progress on testing these interactions. This progress will be enabled by IceCube-Gen2 observations of high-energy astrophysical neutrinos. Critical to this is our comprehensive treatment of the theory, taking into account previously neglected or overly approximated effects, as well as including realistic detection physics. We show that IceCube-Gen2 can realize the full potential of neutrino astronomy for testing neutrino self-interactions, being sensitive to cosmologically relevant interaction models.
Exposure-background duality in the searches of neutrinoless double beta decay
Authors: Singh M. K. , Wong H. T. 
Published: February 2022

Abstract
Neutrinoless double-β decay (0υββ) is an experimentally sensitive avenue to probe the nature (Majorana versus Dirac) and exact mass of neutrinos. This work quantitatively explores the interplay between exposure and background levels in 0υββ experiments at their design stage. Although the primary goal of current running and projected experiments is to probe the inverted mass hierarchy, current neutrino oscillation experiments reveal a preference for non-degenerate (ND) normal mass hierarchy. Therefore the strategy of scaling the summit of 0υββ should also take this genuine possibility into account. Present work would explore the role of background suppression in alleviating the necessity of large exposure for future 0υββ experiments with sensitivity goals of approaching and covering ND-NH. In particular, the roles of energy resolution in suppressing the irreducible background of 2υββ are investigated.
JUNO Oscillation Physics
Authors: Zhang Jinnan 
Published: February 2022

Abstract
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi-purpose liquid scintillator detector with an expected

3
%
/

E
[
Mev
]

energy resolution, under construction in a 700 m underground laboratory in the south of China (Jiangmen city, Guangdong province). The exceptional energy resolution and the massive fiducial volume of the JUNO detector offer great opportunities for addressing many essential topics in neutrino and astroparticle physics. JUNO’s primary goals are to determine the neutrino mass ordering and precisely measure the related neutrino oscillation parameters. With six years of data taking with reactor antineutrinos, JUNO can determine the mass ordering at a 3-4σ significance and the neutrino oscillation parameters sin2
θ
12,

Δ

m

21

2

, and

|
Δ

m

31

2

|

to a precision of better than 0.6%. In addition, the atmospheric neutrino and solar neutrino measurement at JUNO can also provide complementary and important information for neutrino oscillation physics. This work focuses on the oscillation physics of JUNO, which includes measurement and analysis of the reactor neutrinos, the atmospheric neutrinos, and the solar neutrinos. With the delicate energy response calibration and event reconstruction potential, JUNO will make a world-leading measurement on the neutrino oscillation parameters and neutrino mass ordering in the near future.
Gaseous detectors for Neutrino-nucleus coherent scattering at the ESS
Authors: Monrabal F. 
Published: February 2022

Abstract
The recent detection of the coherent elastic neutrino-nucleus scattering (CEυNS) opens the possibility to use neutrinos to explore physics beyond standard model with small size detectors. However, the CEυNS process generates signals at the few keV level, requiring of very sensitive detecting technologies for its detection. The European Spallation Source (ESS) has been identified as an optimal source of low energy neutrinos offering an opportunity for a definitive exploration of all phenomenological applications of CEυNS. In this project I propose to apply the high pressure gas TPC technology to the detection of the CEυNS process at the ESS. This will require the development of very low-energy detectors and to improve the current knowledge of the quenching factor for nuclear recoils in gas at keV energies. The major goal of this project is to build a 20 kg xenon gaseous detector and operate it at the ESS, such detector will provide more than 7,000 CEυNS events per year, overtaking the sensitivities of much larger detectors in current spallations sources.