bluuebunny/crossref_metadata_2025_split huggingface dataset:
Indirect Searches for Dark Matter Signatures at INO
Authors: Choubey S , Ghosh A , Tiwari D 
Published: January 2020

Abstract
Neutrino fluxes could arise due to annihilation of Weakly Interactive Massive Particles (WIMPs) in the center of the sun. We study the prospects of search for muon events due to such neutrinos at the upcoming Iron CALorimeter (ICAL) detector to be housed at India-based Neutrino Observatory (INO). Although the atmospheric neutrinos will pose a serious background to the signal neutrinos produced through WIMP annihilation, the former could be supressed significantly by using the directional property of signal neutrinos. For 50kt×10 years of ICAL running and WIMP masses (mχ
) between 3-100 GeV, we perform a χ2 analysis and present expected exclusion regions in the σβख़ — mx
and σβι — mx
plane, where σβख़ and σβι are the WIMP-nucleon Spin-Dependent (SD) and Spin-Independent (SI) scattering cross-sections, respectively. For mx
= 25 GeV, the expected 90 % C.L. exclusion limit on σβख़ are σβॄ < 7.82 x 10−41
cm2
for τ+τ−
channel and σβख़ < 1.23 10−39
cm2
for 66 channel. For same m×
, the expected 90 % C.L. exclusion limits on σβι are σβι < 8.97 × 10−43
cm2
for τ +τ
− channel and σβι < 1.43×10−41
cm2
for 66 channel.
Analytical response function for the Borexino solar neutrino analysis
Authors: Bagdasarian Z , Ding X , Vishneva A 
Published: January 2020

Abstract
Borexino experiment is located at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy, and its primary goal is detecting solar neutrinos, in particular those below 2 MeV, with unprecedentedly high sensitivity. Its technical distinctive feature is the ultra-low radioactive background of the inner scintillating core, which is the basis of the outstanding achievements obtained by the experiment (fluxes of 7Be, pep, pp, and limit on CNO). A spectral fit in the whole energy range from 200 keV up to 2 MeV has been performed for the first time, allowing to obtain simultaneously fluxes of all the solar neutrino components. To make such a fit possible, one requires the exact shapes of neutrino signals and backgrounds, as seen in the detector. Therefore, the transformation of the spectra from the original energy scale to the scale of the desired energy estimator, such as the number of hit PMTs or photoelectrons, is one of the key steps of the analysis. This conversion accounts for the energy scale non-linearity and the detector’s energy response, and can be performed using two approaches: the Monte Carlo simulation and the use of analytical models. The details and advantages of the analytical approach are presented in this contribution.
Search for sterile neutrinos with SOX: Monte Carlo studies of the experiment sensitivity and systematic effects
Authors: Basilico D , Neumair B , Martyn J 
Published: January 2020

Abstract
Some neutrino experiments reveal anomalous results which can make room for new physics beyond the three-flavor neutrino oscillation model. These hints suggest the existence of sterile neutrinos with mass m <eV. SOX will be a short-baseline disappearance experiment aiming to test this hypotesis, performed with the liquid scintillator detector Borexino at Gran Sasso National Laboratory in Italy [1]. Due to the good energy and position resolution, a light sterile neutrino can create an oscillatory pattern in the signal. The SOX sensitivity, the related analysis and systematics will be briefly discussed.
Calibration Hardware for SNO+
Authors: Bayes Ryan 
Published: January 2020

Abstract
The SNO+ experiment has a varied neutrino physics program that includes a neutrino-less double beta decay experiment in addition to reactor, solar, and geoneutrino measurements. SNO+ uses the architecture of SNO, using an acrylic vessel filled with scintillator as its neutrino target suspended in a water volume. At this time data is being collected with the acrylic vessel filled with water in preparation for the scintillator phase. An essential component to the successful execution of this physics program is a calibration of the optical and energetic response of the detector. Calibrations are underway using a laser-driven light source and radioactive gas sources, such as Nitrogen-16, that are to be lowered into the detector vessel on an umbilical. The position can be manipulated in 1-D using the umbilical retrieval mechanisms (URM) or in 2-D using ropes to guide the source off-axis. The sources and drive systems will be presented here with the goals of the calibration in the context of its impact on the SNO+ physics program.
Thermal management and modeling for precision measurements in Borexino’s SOX and solar neutrino spectroscopy programs
Authors: Bravo-Berguño David 
Published: January 2020

Abstract
Borexino has performed the first direct, high-precision, wideband solar neutrino spectroscopy of the solar neutrino spectrums main components, including improving the knowledge of the CNO ν flux. Its next-generation short-baseline 144Ce-144Pr (math) source program (CeSOX) intends to unambiguously measure or disprove signs of anomalous oscillatory behavior in the low L/E regime. Both programs rely on the detector’s unprecedented and record-setting background levels, which are tightening its requirement for background stability. Aiming to minimize background fluctuations (particularly 210Po), a new Temperature Monitoring and Management System was deployed. Computational Fluid Dynamics (CFD) simulations are also being developed in order to model, characterize and ultimately predict the subtle fluid currents that might be a hindrance for the required background stability.
A sensitive assay technique for 210Pb in water
Authors: Chauhan D , Chkvorets O 
Published: January 2020

Abstract
SNO+ is a multipurpose neutrino physics experiment, located 2 kilometers underground in the SNOLAB facility in Sudbury, Canada. It is the successor of the SNO experiment, replacing the heavy water in the Acrylic vessel (AV) with 780 tons of liquid scintillator, Linear Alkyl Benzene (LAB). The AV is surrounded by 7000 tons of ultrapure light water, which shields the detector from naturally occurring radioactivity in the surrounding rock, PMTs, and PSUP. To achieve the radiopurity requirements, the water should be very clean and levels of U and Th contamination in the shielding water must be carefully controlled. A water assay technique, based on the capture of Ra and Th radioisotopes using Hydrous Titanium Oxide (HTiO), was developed by the SNO experiment. Ra sensitivities equivalent to 232Th: 4×10−16 gTh/D2O and 238U: 3×10−16 gU/g D2O were achieved with this technique [1]. The HTiO technique will be used in SNO+ to monitor 238U and 232Th contamination levels in the shielding water and the performance of the water purification system.
For the lower energy measurements of interest to SNO+, radon daughter radioisotopes, especially 210Po and 210Bi supported by 210Pb, are also important. Since water will be used in the purification of both the liquid scintillator and tellurium that will be chemically loaded in SNO+ to search for neutrinoless double beta decay, a technique to assay for 210Pb in water was desirable. The SNO+ collaboration has extended the HTiO assay technique to allow measurement of 210Pb in the water. This technique is capable of measuring 0.4 +/- 0.13 mBq/m3 of 210Pb for a 10 tonne assay. The method developed and results of initial 210Pb measurements are presented.
Liquid scintillator for search of double beta decay with Tin
Authors: Chkvorets O. , Kraus C. , Kuettler J. , Lozza V. , Zuber K. 
Published: January 2020

Abstract
Sn-124 is one of the double beta decay isotopes where no measurement of the 2νββ decay rate has been performed. The abundance of the isotope is 5.79%, fairly low, however it can be compensated for by the high loading potential of the natural isotope up to 10% into liquid scintillator without significant light quenching. This work presents results of the LAB based tin loaded liquid scintillator: stability, light yield and possible purification techniques.
Calibration campaign of the Borexino detector for the search of sterile neutrinos with SOX
Authors: Collica L , Berguno D Bravo , Choi K , Nieslony M 
Published: January 2020

Abstract
The SOX (Short distance Oscillations with boreXino) experiment aims to investigate possible anomalous oscillatory behaviours in neutrinos, including the existence of sterile neutrinos, by exploiting the very low radioactive background of the Borexino detector. A calibration campaign is crucial to achieve a deeper understanding of the energy response and the spatial reconstruction accuracies of the detector. It will be performed with a suite of low-activity radioactive sources which will map the whole active volume, especially nearby the inner vessel. The calibration points at the border of the active zones will be extremely important to study the neutron detection efficiency. The calibration system, already used in Borexino Phase-I, allows the insertion of the sources without perturbing the radio-purity of the detector. The calibration campaign will take place a few months before the beginning of the SOX experiment. In this work, we describe in detail both the calibration hardware and the calibration strategy.
Initial performance of the CUORE detector
Authors: Cushman J. S. , Alduino C. , Alfonso K. , Avignone F. T. , Azzolini O. , Bari G. , Bellini F. , Benato G. , Bersani A. , Biassoni M. , Branca A. , Brofferio C. , Bucci C. , Camacho A. , Caminata A. , Canonica L. , Cao X. G. , Capelli S. , Cappelli L. , Cardani L. , Carniti P. , Casali N. , Cassina L. , Chiesa D. , Chott N. , Clemenza M. , Copello S. , Cosmelli C. , Cremonesi O. , Creswick R. J. , D’Addabbo A. , D’Aguanno D. , Dafinei I. , Davis C. J. , Dell’Oro S. , Deninno M. M. , Domizio S. Di , Vacri M. L. Di , Drobizhev A. , Fang D. Q. , Faverzani M. , Ferri E. , Ferroni F. , Fiorini E. , Franceschi M. A. , Freedman S. J. , Fujikawa B. K. , Giachero A. , Gironi L. , Giuliani A. , Gladstone L. , Gorla P. , Gotti C. , Gutierrez T. D. , Han K. , Heeger K. M. , Hennings-Yeomans R. , Huang H. Z. , Keppel G. , Kolomensky Yu. G. , Leder A. , Ligi C. , Lim K. E. , Ma Y. G. , Marini L. , Martinez M. , Maruyama R. H. , Mei Y. , Moggi N. , Morganti S. , Nagorny S. S. , Napolitano T. , Nastasi M. , Nones C. , Norman E. B. , Novati V. , Nucciotti A. , Nutini I. , O’Donnell T. , Ouellet J. L. , Pagliarone C. E. , Pallavicini M. , Palmieri V. , Pattavina L. , Pavan M. , Pessina G. , Pira C. , Pirro S. , Pozzi S. , Previtali E. , Reindl F. , Rosenfeld C. , Rusconi C. , Sakai M. , Sangiorgio S. , Santone D. , Schmidt B. , Schmidt J. , Scielzo N. D. , Singh V. , Sisti M. , Taffarello L. , Terranova F. , Tomei C. , Vignati M. , Wagaarachchi S. L. , Wang B. S. , Wang H. W. , Welliver B. , Wilson J. , Wilson K. , Winslow L. A. , Wise T. , Zanotti L. , Zhang G. Q. , Zimmermann S. , Zucchelli S. 
Published: January 2020

Abstract
CUORE, the Cryogenic Underground Observatory for Rare Events, is an experiment searching for the neutrinoless double-beta decay of 130Te. The first CUORE dataset was acquired in May and June 2017 and consisted of 10.6 kg-yr of TeO2 exposure, with several days of calibration data before and after the physics dataset. We discuss here the initial performance of the CUORE detector and cryostat in this first dataset.
Studies on Muon Veto in the JUNO Liquid Scintillator Neutrino Detector
Authors: Genster Christoph 
Published: January 2020

Abstract
The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator detector currently under construction near Kaiping, China. It is located 650 m underground with a baseline of 53 km to two nuclear power plants. The reactor neutrinos are measured via inverse beta decay in order to determine the neutrino mass hierarchy. Muons that cross the detector create a correlated background for this measurement. A set of sub-detectors and sophisticated reconstruction algorithms are presented to achieve an efficient veto of cosmogenic backgrounds while keeping a high exposure. On a sample of through-going muons with the expected mean energy of 215 GeV a spatial bias of less than 10 cm and an angular bias better than 0.5 ° can be reached. There is only 1% additional loss in exposure compared to a perfect tracking.
Spin light of neutrino in neutron star matter
Authors: Grigoriev Alexander , Lokhov Alexey , Studenikin Alexander , Ternov Alexei 
Published: January 2020

Abstract
In this paper we discuss the possibility of SLν radiation by a neutrino moving in dense matter of a neutron star. We determine a set of conditions inside neutron stars for which the radiation is possible and might have a considerable efficiency.
Time dependence of the proton and helium flux measured by PAMELA
Authors: Panico Beatrice , Campana D. , Osteria G. , Barbarino G. C. , Adriani O. , Bongi M. , Spillantini P. , Mori N. , Papini P. , Vannuccini E. , Bazilevskaya G. A. , Kvashnin A. N. , Stozhkov Y. I. , Bellotti R. , Monaco A. , Bruno A. , Cafagna F. , Boezio M. , Bonvicini V. , Mocchiutti E. , Munini R. , Zampa G. , Zampa N. , Vacchi A. , Bogomolov E. A. , Krutkov S. Y. , Vasilyev G. I. , Carlson P. , Pearce M. , Casolino M. , Castellini G. , De Santis C. , Marcelli L. , Mergè M. , Picozza P. , Sparvoli R. , Di Felice V. , Galper A. M. , Karelin A. V. , Koldashov S. V. , Koldobskiy S. , Yurkin Y. T. , Malakhov V. , Leonov A. , Mayorov A. G. , Mikhailov V. V. , Voronov S. A. , Martucci M. , Menn W. , Simon M. , Ricci M. , Ricciarini S. B. 
Published: January 2020

Abstract
The energy spectra of galactic cosmic rays carry fundamental information regarding their origin and propagation, but, near Earth, cosmic rays are significantly affected by the solar magnetic field which changes over time. The time dependence of proton and electron spectra were measured from July 2006 to December 2009 by PAMELA experiment, that is a ballooon-borne experiment collecting data since 15 June 2006. These studies allowed to obtain a more complete description of the cosmic radiation, providing fundamental information about the transport and modulation of cosmic rays inside the heliosphere. The study of the time dependence of the cosmic-ray protons and helium nuclei from the unusual 23rd solar minimum through the following period of solar maximum activity is presented.
The HEPD apparatus for the CSES mission
Authors: Panico Beatrice , Osteria G. , Perfetto F. , Scotti V. , Cipollone P. , De Donato C. , De Santis C. , Marcelli L. , Masciantonio G. , Mergè M. , Palma F. , Picozza P. , Sotgiu A. , Sparvoli R. , Contin A. , Guadalini C. , Laurenti G. , Lolli M. , Palmonari F. , Patrizii L. , Pozzato M. , Ricci M. , Spataro B. , Burger W.J. , Battiston R. , Follega F.M. , Iuppa R. , Lazzizzera I. , Manea C. , Rashevskaya I. , Ricci E. , Vitale V. , Ambrosi G. , Ionica M. , Sposito M. , Bartocci S. , Conti L. , Castellini G. , Pacini L. , Ricciarini S.B. 
Published: January 2020

Abstract
The High-Energy Particle Detector (HEPD) is one of the payloads of the CSES space mission. The HEPD is built by the Italian Limadou collaboration and has different goals. It will study the temporal stability of the inner Van Allen radiation belts, the precipitation of trapped particles in the atmosphere and the low energy component of the cosmic rays (5-100 MeV for electrons and 15 - 300 MeV for protons). It has been tested at the Beam Test Facility of the INFN National Laboratory of Frascati, for electrons, and at the Proton Cyclotron of Trento, for protons. Here is presented a study of the performance of the apparatus to separate electrons and protons and identify nuclei up to iron.
Data Quality and Run Selection for the SNO+ experiment
Authors: Braid D. , Coulter I. , Descamps F. , Ludovico F. Di , Falk E. , Leming E. , Marzec E. , Mastbaum A. , Mlejnek M. , Nae S. , Prior G. , Rumleskie J. , Singh K. , Stringer M. , Wilson J. 
Published: January 2020

Abstract
The SNO+ detector main physics goal is the search for neutrinoless double-beta decay, a rare process which if detected, will prove the Majorana nature of the neutrinos and provide information on the absolute scale of the neutrino absolute mass. Additional physics goals of SNO+ include the study of solar neutrinos, anti-neutrinos from nuclear reactors and the Earth’s natural radioactivity as well as Supernovae neutrinos. Located in the SNOLAB underground physics laboratory (Canada), it will re-use the SNO experiment infrastructure with the 12 m diameter spherical volume filled with 780 tons of Te-loaded liquid scintillator. A short phase with the detector completely filled with water has started at the end of 2016. It will be followed by a scintillator phase expected to start at the end of this year. Continual careful monitoring of the detector state such as its hardware configuration, slow control information, data handling and triggers is required to ensure the quality of the data taken. Several automatic checks have been put in place for that purpose. This information serves as input to higher level run selection tools that will ultimately perform a final decision on the goodness of a run for a given physics analysis.
CUTE - A Cryogenic Underground Test Facility at SNOLAB
Authors: Rau W , Gerbier G , Camus P. , Dering K. , Cazes A. , Scorza S. , Zhang X. , Dastgheibi-Fard A. 
Published: January 2020

Abstract
The excellent energy resolution and low threshold of cryogenic detectors have brought them to the forefront of the search for low-mass Weakly Interacting Massive Particles. The next generation of large cryogenic detectors for dark matter search promises further improvements in sensitivity, yet it is difficult and in some cases impossible to test and fully characterize these detectors in an unshielded environment. Therefore, the Queen’s SuperCDMS team is installing a well shielded Cryogenic Underground detector TEst facility (CUTE) at SNOLAB to support detector testing and characterization for SuperCDMS and future cryogenic rare event search experiments. Significant effort is put into achieving a very low background environment which may open the door for early science results with the first set of SuperCDMS detectors during the time the main experimental apparatus is being installed. We discuss some of the challenges and solutions implemented in the design of this facility as well as the status and schedule for the start of operations underground at SNOLAB.
The ν-cleus experiment: Gram-scale cryogenic calorimeters for a discovery of coherent neutrino scattering
Authors: Strauss R. , Rothe J. , Petricca F. , Schönert S. 
Published: January 2020

Abstract
We investigate new gram-scale cryogenic detectors, 1-2 orders of magnitude smaller in size than previous devices. These are expected to reach unprecedentedly low energy thresholds, in the 10 eV-regime and below. This technology allows new approaches in rare-event searches, including the search for MeV-scale dark matter, detection of solar neutrinos and a rapid discovery of coherent neutrino-nucleus scattering (CNNS) at a nuclear reactor. We show a simple scaling law for the performance of cryogenic calorimeters, allowing the extrapolation of existing device performances to smaller sizes. Measurement results with a 0.5 g sapphire detector are presented. This prototype reached a threshold of 20 eV, which is one order of magnitude lower than previous results with massive calorimeters. We discuss an experiment, called ν-cleus, which enables a 5-σ discovery of CNNS within about 2 weeks of measuring time at 40 m distance from a power reactor. In a second stage, this experiment enables precision measurements of the CNNS cross-section and spectral shape for new physics within and beyond the Standard Model.
Current status and projected sensitivity of COSINE-100
Authors: Thompson WG 
Published: January 2020

Abstract
COSINE-100, a direct detection WIMP dark matter search, is using 106 kg of NaI(Tl) crystals to definitively test the DAMA collaboration’s claim of WIMP discovery. In the context of most standard models of WIMP dark matter, the DAMA result is in conflict with other direct detection experiments. To resolve this tension, COSINE-100 seeks to independently test the DAMA observation using a detector of the same target material as DAMA, thus definitively confirming or refuting their claim of WIMP discovery. Here, we present the current status and projected sensitivity of COSINE-100, along with the projected sensitivity of COSINE-200, a possible next phase of the experiment.
Supernovae and SNO+
Authors: Rumleskie J , Virtue C 
Published: January 2020

Abstract
At the end of a massive star’s life, a violent explosion known as a supernova occurs and releases 99% of the star’s gravitational binding energy in the form of neutrinos. Although the explosion generates a huge burst of neutrinos, the large distance to earthbound detectors, low cross sections, and flavour changing oscillations can make detection and analysis challenging. Only one neutrino burst from a supernova has ever been detected, but neutrino detectors have been waiting patiently for another. The SNO+ detector at SNOLAB can be used as a supernova detector during both regular operation and calibrations by measuring the burst of neutrinos from a supernova. We present the neutrino detection method and analysis of potential galactic supernova with the SNO+ detector.
Tensor meson contribution to the Lamb shift and hyperfine splitting in muonic hydrogen
Authors: Dorokhov A E , Martynenko A P , Martynenko F A , Radzhabov A E 
Published: January 2020

Abstract
We calculate the tensor meson exchange contribution to the interaction operator of muon and proton, which is determined by the tensor meson coupling with two photon state. For the construction of transition form factor T → γγ we use the monopole parametrization over photon four-momenta and experimental data on the decay width Γ
Tγγ
. It is shown that tensor meson f
2(1270) exchange gives essential contribution to the Lamb shift in muonic hydrogen ΔΕLs
(2P – 2S) which should be taken into account for a comparison with precise experimental data.
Unpolarized and spin-dependent DIS structure functions in Double-Logarithmic Approximation
Authors: Ermolaev B I , Troyan S I 
Published: January 2020

Abstract
We demonstrate how to calculate perturbative components of the structure functions F1 (for unpolarized DIS) and gi (spin-dependent DIS) in Double-Logarithmic Approximation, studying separately the cases of fixed and running QCD coupling. We show that as long as only ladder graphs are accounted for (throughout the talk we use the Feynman gauge for virtual gluons) there is no difference at all between F
1 and g
1. However, accounting for contributions of non-ladder graphs brings an essential difference between them. Applying Saddle-Point method to expressions for F
1 and g
1, we obtain their small-x asymptotics. The both asymptotics are of the Regge kind but with different intercepts. The intercept of F
1 proved to be greater than unity, so it is a new contribution to Pomeron. We show the reason for the g
1 intercept should be less than the one of F
1 and thereby argue against using model Pomerons in the spin-dependent processes. Finally, we discuss the applicability region of Regge asymptotics.
Chiral vortical and Chiral torsional effects
Authors: Abramchuk R. A. , Khaidukov Z. V. , Zubkov M. A. 
Published: January 2020

Abstract
Corrections to the chiral vortical effect due to the finite volume and the presence of mass are discussed. The possibility to describe the chiral vortical effect(CVE) by an effective gauge field is considered. The new chiral effect arising in the presence of torsion is described.