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The GERmanium Detector Array (GERDA) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double beta decay of 76Ge. The signature of the signal is a monoenergetic peak at 2039 keV, the Q-value of…

Instrumentation and Detectors · Physics 2014-04-11 The GERDA collaboration , M. Agostini , M. Allardt , E. Andreotti , A. M. Bakalyarov , M. Balata , I. Barabanov , M. Barnabe Heider , N. Barros , L. Baudis , C. Bauer , N. Becerici-Schmidt , E. Bellotti , S. Belogurov , S. T. Belyaev , G. Benato , A. Bettini , L. Bezrukov , T. Bode , V. Brudanin , R. Brugnera , D. Budjas , A. Caldwell , C. Cattadori , A. Chernogorov , F. Cossavella , E. V. Demidova , A. Domula , V. Egorov , R. Falkenstein , A. Ferella , K. Freund , N. Frodyma , A. Gangapshev , A. Garfagnini , C. Gotti , P. Grabmayr , V. Gurentsov , K. Gusev , K. K. Guthikonda , W. Hampel , A. Hegai , M. Heisel , S. Hemmer , G. Heusser , W. Hofmann , M. Hult , L. V. Inzhechik , L. Ioannucci , J. Janicsko Csathy , J. Jochum , M. Junker , T. Kihm , I. V. Kirpichnikov , A. Kirsch , A. Klimenko , K. T. Knoepfle , O. Kochetov , V. N. Kornoukhov , V. V. Kuzminov , M. Laubenstein , A. Lazzaro , V. I. Lebedev , B. Lehnert , H. Y. Liao , M. Lindner , I. Lippi , X. Liu , A. Lubashevskiy , B. Lubsandorzhiev , G. Lutter , C. Macolino , A. A. Machado , B. Majorovits , W. Maneschg , I. Nemchenok , S. Nisi , C. O'Shaughnessy , D. Palioselitis , L. Pandola , K. Pelczar , G. Pessina , A. Pullia , S. Riboldi , C. Sada , M. Salathe , C. Schmitt , J. Schreiner , O. Schulz , B. Schwingenheuer , S. Schoenert , E. Shevchik , M. Shirchenko , H. Simgen , A. Smolnikov , L. Stanco , H. Strecker , M. Tarka , C. A. Ur , A. A. Vasenko , O. Volynets , K. von Sturm , V. Wagner , M. Walter , A. Wegmann , T. Wester , M. Wojcik , E. Yanovich , P. Zavarise , I. Zhitnikov , S. V. Zhukov , D. Zinatulina , K. Zuber , G. Zuzel

We search for electron anti-neutrinos ($\overline{\nu}_e$) from long and short-duration gamma-ray bursts~(GRBs) using data taken by the KamLAND detector from August 2002 to June 2013. No statistically significant excess over the background…

We make a new estimate of the extragalactic radio background down to kHz frequencies based on the observed luminosity functions and radio spectra of normal galaxies and radio galaxies. We have constructed models for the spectra of these two…

Astrophysics · Physics 2010-11-30 R. J. Protheroe , P. L. Biermann

The standard three-neutrino oscillation paradigm, associated with small squared mass splittings $\ll 0.1\ \mathrm{eV^2}$, has been successfully built up over the last 15 years using solar, atmospheric, long baseline accelerator and reactor…

Instrumentation and Detectors · Physics 2015-04-16 J. Gaffiot , T. Lasserre , G. Mention , M. Vivier , M. Cribier , M. Durero , V. Fischer , A. Letourneau , E. Dumonteil , I. S. Saldikov , G. V. Tikhomirov

High-energy photons with $\mathcal{O}$(MeV) energies from radioactive contaminants can scatter in a solid-state target material and constitute an important low-energy background for sub-GeV dark matter direct-detection searches. This…

High Energy Physics - Phenomenology · Physics 2022-08-17 Kim V. Berghaus , Rouven Essig , Yonit Hochberg , Yutaro Shoji , Mukul Sholapurkar

The concept of putting a neutrino detector in close orbit of the sun has been unexplored until very recently. The primary scientific return is to vastly enhance our understanding of the solar interior, which is a major NASA goal.…

Instrumentation and Detectors · Physics 2023-07-24 N. Solomey , J. Folkerts , H. Meyer , C. Gimar , J. Novak , B. Doty , T. English , L. Buchele , A. Nelsen , R. McTaggart , M. Christl

Motivated by Pierre Auger Observatory results favoring a heavy nuclear composition for ultrahigh-energy (UHE) cosmic rays, we investigate implications for the cumulative neutrino background. The requirement that nuclei not be…

High Energy Astrophysical Phenomena · Physics 2016-03-14 Kohta Murase , John F. Beacom

Very high energy gamma-ray data obtained by CAT and HEGRA from active galactic nucleus Mkn 501 are used to constrain the cosmic Mid-Infrared background. While the entire infrared and submillimeter spectrum shape based on models has been…

Astrophysics · Physics 2011-05-23 C. Renault , A. Barrau , G. Lagache , J. -L. Puget

The shocks produced in the intergalactic medium during large-scale structure formation accelerate a population of highly relativistic electrons which emit synchrotron radiation due to intergalactic magnetic fields. In a previous paper (Loeb…

Astrophysics · Physics 2009-10-31 Eli Waxman , Abraham Loeb

Neutron-induced background has been studied in various components of the TIN.TIN detector, which is under development for the search of Neutrinoless Double Beta Decay in $\rm^{124}Sn$. Fast neutron flux $\sim10^{6}~n~cm^{-2}s^{-1}$ covering…

Instrumentation and Detectors · Physics 2014-11-12 N. Dokania , V. Singh , S. Mathimalar , C. Ghosh , V. Nanal , R. G. Pillay , S. Pal , K. G. Bhushan , A. Shrivastava

The background on double beta decay searches due to elastic electron scattering of solar neutrinos of all double beta emitters with Q-value larger than 2 MeV is calculated, taking into account survival probability and flux uncertainties of…

High Energy Physics - Phenomenology · Physics 2015-03-19 N. F. de Barros , K. Zuber

An electron antineutrino mass has been measured in tritium beta-decay in the "Troitsk nu-mass" experiment. The setup consists of a windowless gaseous tritium source and an electrostatic electron spectrometer. The whole data set acquired…

The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to determine the effective mass of the electron antineutrino via a high-precision measurement of the tritium beta-decay spectrum in its end-point region. The target neutrino-mass…

Data Analysis, Statistics and Probability · Physics 2026-04-29 S. Schneidewind , J. Schürmann , A. Lokhov , C. Weinheimer , A. Saenz

CRESST II is an experiment for direct WIMP search, using cryogenic detectors. The ratio of the two signals (temperature rise and scintillation light) measured for each interaction is an excellent parameter for discrimination of radioactive…

High Energy Physics - Experiment · Physics 2007-05-23 H. Wulandari , F. von Feilitzsch , M. Huber , Th. Jagemann , J. Jochum , T. Lachenmaier , J. -C. Lanfranchi , W. Potzel , W. Rau , M. Stark , S. Waller

Natural radioactivity represents one of the main backgrounds in the search for neutrinoless double beta decay. Within the NEXT physics program, the radioactivity-induced backgrounds are measured with the NEXT-White detector. Data from 37.9…

The KATRIN (Karlsruhe Tritium Neutrino) experiment investigates the energetic endpoint of the tritium $\beta$-decay spectrum to determine the effective mass of the electron anti-neutrino with a precision of $200\,\mathrm{meV}$ ($90\,\%$…

Neutrinoless double beta decay would be a key to understanding the nature of neutrino masses. The next generation of High Purity Germanium experiments will have to be operated with a background rate of better than 10^-5 counts/(kg y keV) in…

Instrumentation and Detectors · Physics 2011-05-19 B. Majorovits , I. Abt , M. Laubenstein , O. Volynets

The MeV Gamma-Gamma Collider would provide a direct experimental platform for elastic light-by-light scattering ($\gamma\gamma \to \gamma\gamma$) and the Breit-Wheeler process with two real photons ($\gamma\gamma \to e^+e^-$). A Monte Carlo…

Instrumentation and Detectors · Physics 2025-10-30 Ping Zhou , Meiyu Si , Yuanjie Bi , Illya Drebot , Yongsheng Huang

The ANTARES collaboration has performed a series of {\em in situ} measurements to study the background light for a planned undersea neutrino telescope. Such background can be caused by $^{40}$K decays or by biological activity. We report on…

Astrophysics · Physics 2012-08-27 ANTARES collaboration