Search

Your search keyword '"INFN Laboratori Nazionali del Gran Sasso"' showing total 177 results
Start Over Author "INFN Laboratori Nazionali del Gran Sasso"
177 results on '"INFN Laboratori Nazionali del Gran Sasso"'

1. Results on ββ decay with emission of two neutrinos or Majorons in 76 Ge from GERDA Phase I

Author

LNGS, Assergi, Italy, Agostini, M.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Allardt, M.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Bakalyarov, A. M.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Balata, M.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Barabanov, I.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Barros, N.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Baudis, L.(Physik Institut der Universität Zürich, Zurich, Switzerland), Bauer, C.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Becerici-Schmidt, N.(Max-Planck-Institut für Physik, Munich, Germany), Bellotti, E.(Dipartimento di Fisica, Università Milano Bicocca, Milan, Italy), Belogurov, S.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Belyaev, S. T.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Benato, G.(Physik Institut der Universität Zürich, Zurich, Switzerland), Bettini, A.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Bezrukov, L.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Bode, T.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Borowicz, D.(Institute of Physics, Jagiellonian University, Cracow, Poland), Brudanin, V.(Joint Institute for Nuclear Research, Dubna, Russia), Brugnera, R.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Budjáš, D.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Caldwell, A.(Max-Planck-Institut für Physik, Munich, Germany), Cattadori, C.(INFN Milano Bicocca, Milan, Italy), Chernogorov, A.(Institute for Theoretical and Experimental Physics, Moscow, Russia), D’Andrea, V.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Demidova, E. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia), di Vacri, A.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Domula, A.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Doroshkevich, E.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Egorov, V.(Joint Institute for Nuclear Research, Dubna, Russia), Falkenstein, R.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Fedorova, O.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Freund, K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Frodyma, N.(Institute of Physics, Jagiellonian University, Cracow, Poland), Gangapshev, A.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Garfagnini, A.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Grabmayr, P.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Gurentsov, V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Gusev, K.(Joint Institute for Nuclear Research, Dubna, Russia), Hegai, A.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Heisel, M.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Hemmer, S.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Heusser, G.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Hofmann, W.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Hult, M.(Institute for Reference Materials and Measurements, Geel, Belgium), Inzhechik, L. V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Csáthy, J. Janicskó(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Jochum, J.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Junker, M.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Kazalov, V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Kihm, T.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Kirpichnikov, I. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Kirsch, A.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Klimenko, A.(Joint Institute for Nuclear Research, Dubna, Russia), Knöpfle, K. T.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Kochetov, O.(Joint Institute for Nuclear Research, Dubna, Russia), Kornoukhov, V. N.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Kuzminov, V. V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Laubenstein, M.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Lazzaro, A.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Lebedev, V. I.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Lehnert, B.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Liao, H. Y.(Max-Planck-Institut für Physik, Munich, Germany), Lindner, M.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Lippi, I.(INFN Padova, Padua, Italy), Lubashevskiy, A.(Joint Institute for Nuclear Research, Dubna, Russia), Lubsandorzhiev, B.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Lutter, G.(Institute for Reference Materials and Measurements, Geel, Belgium), Macolino, C.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Majorovits, B.(Max-Planck-Institut für Physik, Munich, Germany), Maneschg, W.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Medinaceli, E.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Misiaszek, M.(Institute of Physics, Jagiellonian University, Cracow, Poland), Moseev, P.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Nemchenok, I.(Joint Institute for Nuclear Research, Dubna, Russia), Palioselitis, D.(Max-Planck-Institut für Physik, Munich, Germany), Panas, K.(Institute of Physics, Jagiellonian University, Cracow, Poland), Pandola, L.(INFN Laboratori Nazionali del Sud, Catania, Italy), Pelczar, K.(Institute of Physics, Jagiellonian University, Cracow, Poland), Pullia, A.(Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy), Riboldi, S.(Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy), Rumyantseva, N.(Joint Institute for Nuclear Research, Dubna, Russia), Sada, C.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Salathe, M.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Schmitt, C.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Schneider, B.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Schönert, S.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany), Schreiner, J.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Schütz, A.-K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Schulz, O.(Max-Planck-Institut für Physik, Munich, Germany), Schwingenheuer, B.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Selivanenko, O.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Shirchenko, M.(Joint Institute for Nuclear Research, Dubna, Russia), Simgen, H.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Smolnikov, A.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Stanco, L.(INFN Padova, Padua, Italy), Stepaniuk, M.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Ur, C. A.(INFN Padova, Padua, Italy), Vanhoefer, L.(Max-Planck-Institut für Physik, Munich, Germany), Vasenko, A. A.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Veresnikova, A.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), von Sturm, K.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Wagner, V.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Walter, M.(Physik Institut der Universität Zürich, Zurich, Switzerland), Wegmann, A.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany), Wester, T.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Wilsenach, H.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Wojcik, M.(Institute of Physics, Jagiellonian University, Cracow, Poland), Yanovich, E.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Zavarise, P.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy), Zhitnikov, I.(Joint Institute for Nuclear Research, Dubna, Russia), Zhukov, S. V.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Zinatulina, D.(Joint Institute for Nuclear Research, Dubna, Russia), Zuber, K.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), and Zuzel, G.(Institute of Physics, Jagiellonian University, Cracow, Poland)

Abstract

A search for neutrinoless ββ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the Laboratori Nazionali del Gran Sasso of INFN (Italy). Processes with spectral indices n=1,2,3,7 were searched for. No signals were found and lower limits of the order of 10 23 yr on their half-lives were derived, yielding substantially improved results compared to previous experiments with 76 Ge. A new result for the half-life of the neutrino-accompanied ββ decay of 76 Ge with significantly reduced uncertainties is also given, resulting in T1/22ν=(1.926±0.094)×1021 yr.

Published
2015

2. TeO 2 bolometers with Cherenkov signal tagging: towards next-generation neutrinoless double-beta decay experiments

Author

Casali, N.INFN Laboratori Nazionali del Gran Sasso, 67010, Assergi (AQ), Italy, Vignati, M.(Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy), Beeman, J.W.(Lawrence Berkeley National Laboratory, 94720, Berkeley, CA, USA), Bellini, F.(Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy), Cardani, L.(Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy), Dafinei, I.(INFN Sezione di Roma, P.le A. Moro 2, 00185, Rome, Italy), Di Domizio, S.(INFN Sezione di Genova, 16146, Genoa, Italy), Ferroni, F.(Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy), Gironi, L.(INFN Sezione di Milano Bicocca, 20126, Milan, Italy), Nagorny, S.(INFN Gran Sasso Science Institute, 67100, L‘Aquila, Italy), Orio, F.(INFN Sezione di Roma, P.le A. Moro 2, 00185, Rome, Italy), Pattavina, L.(INFN Laboratori Nazionali del Gran Sasso, 67010, Assergi (AQ), Italy), Pessina, G.(INFN Sezione di Milano Bicocca, 20126, Milan, Italy), Piperno, G.(Dipartimento di Fisica, Sapienza Università di Roma, 00185, Rome, Italy), Pirro, S.(INFN Laboratori Nazionali del Gran Sasso, 67010, Assergi (AQ), Italy), Rusconi, C.(INFN Sezione di Milano Bicocca, 20126, Milan, Italy), Schäffner, K.(INFN Laboratori Nazionali del Gran Sasso, 67010, Assergi (AQ), Italy), and Tomei, C.(INFN Sezione di Roma, P.le A. Moro 2, 00185, Rome, Italy)

Abstract

CUORE, an array of 988 TeO 2 bolometers, is about to be one of the most sensitive experiments searching for neutrinoless double-beta decay. Its sensitivity could be further improved by removing the background from α radioactivity. A few years ago it was pointed out that the signal from β s can be tagged by detecting the emitted Cherenkov light, which is not produced by α s. In this paper we confirm this possibility. For the first time we measured the Cherenkov light emitted by a CUORE crystal, and found it to be 100 eV at the Q -value of the decay. To completely reject the α background, we compute that one needs light detectors with baseline noise below 20 eV RMS, a value which is 3–4 times smaller than the average noise of the bolometric light detectors we are using. We point out that an improved light detector technology must be developed to obtain TeO 2 bolometric experiments able to probe the inverted hierarchy of neutrino masses.

Published
2015

3. The background in the 0νββ experiment Gerda

Author

Agostini, M.Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany, Allardt, M.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Andreotti, E.(Institute for Reference Materials and Measurements, Geel, Belgium), Bakalyarov, A. M.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Balata, M.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Barabanov, I.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Barnabé Heider, M.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Barros, N.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Baudis, L.(Physik Institut der Universität Zürich, Zurich, Switzerland), Bauer, C.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Becerici-Schmidt, N.(Max-Planck-Institut für Physik, München, Germany), Bellotti, E.(Dipartimento di Fisica, Università Milano Bicocca, Milan, Italy), Belogurov, S.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Belyaev, S. T.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Benato, G.(Physik Institut der Universität Zürich, Zurich, Switzerland), Bettini, A.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Bezrukov, L.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Bode, T.(Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany), Brudanin, V.(Joint Institute for Nuclear Research, Dubna, Russia), Brugnera, R.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Budjáš, D.(Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany), Caldwell, A.(Max-Planck-Institut für Physik, München, Germany), Cattadori, C.(INFN Milano Bicocca, Milan, Italy), Chernogorov, A.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Cossavella, F.(Max-Planck-Institut für Physik, München, Germany), Demidova, E. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Domula, A.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Egorov, V.(Joint Institute for Nuclear Research, Dubna, Russia), Falkenstein, R.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Ferella, A.(Physik Institut der Universität Zürich, Zurich, Switzerland), Freund, K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Frodyma, N.(Institute of Physics, Jagiellonian University, Cracow, Poland), Gangapshev, A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Garfagnini, A.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Gotti, C.(INFN Milano Bicocca, Milan, Italy), Grabmayr, P.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Gurentsov, V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Gusev, K.(Joint Institute for Nuclear Research, Dubna, Russia), Guthikonda, K. K.(Physik Institut der Universität Zürich, Zurich, Switzerland), Hampel, W.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Hegai, A.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Heisel, M.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Hemmer, S.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Heusser, G.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Hofmann, W.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Hult, M.(Institute for Reference Materials and Measurements, Geel, Belgium), Inzhechik, L. V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Ioannucci, L.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Csáthy, J. Janicskó(Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany), Jochum, J.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Junker, M.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Kihm, T.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Kirpichnikov, I. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Kirsch, A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Klimenko, A.(Joint Institute for Nuclear Research, Dubna, Russia), Knöpfle, K. T.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Kochetov, O.(Joint Institute for Nuclear Research, Dubna, Russia), Kornoukhov, V. N.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Kuzminov, V. V.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Laubenstein, M.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Lazzaro, A.(Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany), Lebedev, V. I.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Lehnert, B.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Liao, H. Y.(Max-Planck-Institut für Physik, München, Germany), Lindner, M.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Lippi, I.(INFN Padova, Padua, Italy), Liu, X.(Max-Planck-Institut für Physik, München, Germany), Lubashevskiy, A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Lubsandorzhiev, B.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Lutter, G.(Institute for Reference Materials and Measurements, Geel, Belgium), Macolino, C.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Machado, A. A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Majorovits, B.(Max-Planck-Institut für Physik, München, Germany), Maneschg, W.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Nemchenok, I.(Joint Institute for Nuclear Research, Dubna, Russia), Nisi, S.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), O’Shaughnessy, C.(Max-Planck-Institut für Physik, München, Germany), Palioselitis, D.(Max-Planck-Institut für Physik, München, Germany), Pandola, L.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Pelczar, K.(Institute of Physics, Jagiellonian University, Cracow, Poland), Pessina, G.(Dipartimento di Fisica, Università Milano Bicocca, Milan, Italy), Pullia, A.(Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy), Riboldi, S.(Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy), Sada, C.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Salathe, M.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Schmitt, C.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany), Schreiner, J.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Schulz, O.(Max-Planck-Institut für Physik, München, Germany), Schwingenheuer, B.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Schönert, S.(Physik Department and Excellence Cluster Universe, Technische Universität München, München, Germany), Shevchik, E.(Joint Institute for Nuclear Research, Dubna, Russia), Shirchenko, M.(Joint Institute for Nuclear Research, Dubna, Russia), Simgen, H.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Smolnikov, A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Stanco, L.(INFN Padova, Padua, Italy), Strecker, H.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Tarka, M.(Physik Institut der Universität Zürich, Zurich, Switzerland), Ur, C. A.(INFN Padova, Padua, Italy), Vasenko, A. A.(Institute for Theoretical and Experimental Physics, Moscow, Russia), Volynets, O.(Max-Planck-Institut für Physik, München, Germany), von Sturm, K.(Dipartimento di Fisica e Astronomia dell‘Università di Padova, Padua, Italy), Wagner, V.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Walter, M.(Physik Institut der Universität Zürich, Zurich, Switzerland), Wegmann, A.(Max Planck Institut für Kernphysik, Heidelberg, Germany), Wester, T.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Wojcik, M.(Institute of Physics, Jagiellonian University, Cracow, Poland), Yanovich, E.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia), Zavarise, P.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy), Zhitnikov, I.(Joint Institute for Nuclear Research, Dubna, Russia), Zhukov, S. V.(National Research Centre 'Kurchatov Institute', Moscow, Russia), Zinatulina, D.(Joint Institute for Nuclear Research, Dubna, Russia), Zuber, K.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany), Zuzel, G.(Institute of Physics, Jagiellonian University, Cracow, Poland), Agostini, M, Allardt, M, Andreotti, E, Bakalyarov, A, Balata, M, Barabanov, I, Barnabé Heider, M, Barros, N, Baudis, L, Bauer, C, Becerici Schmidt, N, Bellotti, E, Belogurov, S, Belyaev, S, Benato, G, Bettini, A, Bezrukov, L, Bode, T, Brudanin, V, Brugnera, R, Budjáš, D, Caldwell, A, Cattadori, C, Chernogorov, A, Cossavella, F, Demidova, E, Domula, A, Egorov, V, Falkenstein, R, Ferella, A, Freund, K, Frodyma, N, Gangapshev, A, Garfagnini, A, Gotti, C, Grabmayr, P, Gurentsov, V, Gusev, K, Guthikonda, K, Hampel, W, Hegai, A, Heisel, M, Hemmer, S, Heusser, G, Hofmann, W, Hult, M, Inzhechik, L, Ioannucci, L, Csáthy, J, Jochum, J, Junker, M, Kihm, T, Kirpichnikov, I, Kirsch, A, Klimenko, A, Knöpfle, K, Kochetov, O, Kornoukhov, V, Kuzminov, V, Laubenstein, M, Lazzaro, A, Lebedev, V, Lehnert, B, Liao, H, Lindner, M, Lippi, I, Liu, X, Lubashevskiy, A, Lubsandorzhiev, B, Lutter, G, Macolino, C, Machado, A, Majorovits, B, Maneschg, W, Nemchenok, I, Nisi, S, O'Shaughnessy, C, Palioselitis, D, Pandola, L, Pelczar, K, Pessina, G, Pullia, A, Riboldi, S, Sada, C, Salathe, M, Schmitt, C, Schreiner, J, Schulz, O, Schwingenheuer, B, Schönert, S, Shevchik, E, Shirchenko, M, Simgen, H, Smolnikov, A, Stanco, L, Strecker, H, Tarka, M, Ur, C, Vasenko, A, Volynets, O, von Sturm, K, Wagner, V, Walter, M, Wegmann, A, Wester, T, Wojcik, M, Yanovich, E, Zavarise, P, Zhitnikov, I, Zhukov, S, Zinatulina, D, Zuber, K, and Zuzel, G

Subjects
Physics and Astronomy (miscellaneous), Engineering (miscellaneous)
Abstract

The GERmanium Detector Array ( Gerda ) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double beta ( 0νββ ) decay of 76 Ge. The signature of the signal is a monoenergetic peak at 2039 keV, the Qββ value of the decay. To avoid bias in the signal search, the present analysis does not consider all those events, that fall in a 40 keV wide region centered around Qββ . The main parameters needed for the 0νββ analysis are described. A background model was developed to describe the observed energy spectrum. The model contains several contributions, that are expected on the basis of material screening or that are established by the observation of characteristic structures in the energy spectrum. The model predicts a flat energy spectrum for the blinding window around Qββ with a background index ranging from 17.6 to 23.8 ×  10-3  cts/(keV kg yr). A part of the data not considered before has been used to test if the predictions of the background model are consistent. The observed number of events in this energy region is consistent with the background model. The background at Qββ is dominated by close sources, mainly due to 42 K, 214 Bi, 228 Th, 60 Co and α emitting isotopes from the 226 Ra decay chain. The individual fractions depend on the assumed locations of the contaminants. It is shown, that after removal of the known γ peaks, the energy spectrum can be fitted in an energy range of 200 keV around Qββ with a constant background. This gives a background index consistent with the full model and uncertainties of the same size.

Published
2014

4. Search for low mass dark matter in DarkSide-50: the bayesian network approach

Author

Collaboration, The DarkSide-50, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Campos, M. D., Canci, N., Caravati, M., Cargioli, N., Cariello, M., Carlini, M., Cataudella, V., Cavalcante, P., Cavuoti, S., Chashin, S., Chepurnov, A., Cicalò, C., Covone, G., D'Angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D'Incecco, M., Dionisi, C., Dordei, F., Downing, M., D'Urso, D., Fairbairn, M., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Goretti, A. M., di Cortona, G. Grilli, Grobov, A., Gromov, M., Guan, M., Gulino, M., Hackett, B. R., Herner, K., Hessel, T., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kimura, M., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Lychagina, O., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Messina, A., Milincic, R., Monroe, J., Morrocchi, M., Mougeot, X., Muratova, V. N., Musico, P., Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Piacentini, S., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D. D., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sandford, E., Sands, W., Sanfilippo, S., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M. M., Xiao, X., Yang, C., Zuzel, G., Royal Holloway [University of London] (RHUL), Escola Politecnica da Universidade de Sao Paulo [Sao Paulo], Pacific Northwest National Laboratory (PNNL), Augustana University, Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Fermi National Accelerator Laboratory (Fermilab), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (INFN, Sezione di Cagliari), Università degli studi di Genova = University of Genoa (UniGe), Princeton University, Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), King‘s College London, University of Naples Federico II = Università degli studi di Napoli Federico II, D.V. Skobeltsyn Institute of Nuclear Physics (SINP), Lomonosov Moscow State University (MSU), Università degli Studi di Milano = University of Milan (UNIMI), INFN Laboratori Nazionali del Gran Sasso, Istituto Nazionale di Fisica Nucleare, Sezione di Roma 3 (INFN, Sezione di Roma 3), University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), Università degli Studi di Sassari = University of Sassari [Sassari] (UNISS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), National Research Center 'Kurchatov Institute' (NRC KI), Moscow State Engineering Physics Institute (MEPhI), Institute of High Energy Physics [Beijing] (IHEP), Chinese Academy of Sciences [Changchun Branch] (CAS), INFN---Laboratori Nazionali del Sud (LNS), Via S. Sofia 62, 95123 Catania, Italy, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), University of Houston, Black Hills State University, Nicolaus Copernicus Astronomical Cente (AstroCeNT), Joint Institute for Nuclear Research (JINR), Belgorod National Research University, 308015 Belgorod, Russia, Kurchatov NBIC Centre, National Research Centre, Kurchatov Institute, University of California (UC), University of Hawai'i [Honolulu] (UH), Laboratoire National Henri Becquerel (LNHB), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département d'instrumentation Numérique (DIN (CEA-LIST)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Università degli Studi di Perugia = University of Perugia (UNIPG), University of California [Davis] (UC Davis), Laboratori Nazionali del Sud (INFN), Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ), University of Manchester [Manchester], Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Virginia Tech [Blacksburg], Università degli Studi di Cagliari = University of Cagliari (UniCa), University of California [Riverside] (UC Riverside), the IN2P3-COPIN consortium (Grant No. 20-152), DarkSide-50 Collaboration, ANR-10-LABX-0023,UnivEarthS,Earth - Planets - Universe: observation, modeling, transfer(2010), ANR-18-IDEX-0001,Université de Paris,Université de Paris(2018), European Project: 952480,DarkWave, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Campos, M. D., Canci, N., Caravati, M., Cargioli, N., Cariello, M., Carlini, M., Cataudella, V., Cavalcante, P., Cavuoti, S., Chashin, S., Chepurnov, A., Cical??, C., Covone, G., D'Angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D'Incecco, M., Dionisi, C., Dordei, F., Downing, M., D'Urso, D., Fairbairn, M., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Goretti, A. M., Grilli di Cortona, G., Grobov, A., Gromov, M., Guan, M., Gulino, M., Hackett, B. R., Herner, K., Hessel, T., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kimura, M., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Lychagina, O., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Messina, A., Milincic, R., Monroe, J., Morrocchi, M., Mougeot, X., Muratova, V. N., Musico, P., Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Piacentini, S., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D. D., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sandford, E., Sands, W., Sanfilippo, S., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M. M., Xiao, X., Yang, C., Zuzel, G., INFN Laboratori Nazionali del Gran Sasso, (INFN), Saint Petersburg Nuclear Physics Institute RAS, St Petersburg Nuclear Physics Institute, and DarkSide-50

Subjects
instrumentation, detector response, Cosmology and Nongalactic Astrophysics (astro-ph.CO), dark matter, mass, low, detector, Markov chain, FOS: Physical sciences, parametric, spectrum analysis, background, spectrum, Bayesian, dark matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Monte Carlo, Markov chain, particle transport, network, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Bayesian Networks, distribution function, [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], signal processing, Monte Carlo, Statistical inference, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We present a novel approach for the search of dark matter in the DarkSide-50 experiment, relying on Bayesian Networks. This method incorporates the detector response model into the likelihood function, explicitly maintaining the connection with the quantity of interest. No assumptions about the linearity of the problem or the shape of the probability distribution functions are required, and there is no need to morph signal and background spectra as a function of nuisance parameters. By expressing the problem in terms of Bayesian Networks, we have developed an inference algorithm based on a Markov Chain Monte Carlo to calculate the posterior probability. A clever description of the detector response model in terms of parametric matrices allows us to study the impact of systematic variations of any parameter on the final results. Our approach not only provides the desired information on the parameter of interest, but also potential constraints on the response model. Our results are consistent with recent published analyses and further refine the parameters of the detector response model., Comment: 24 pages, 12 figures, 1 table

Published
2023
Full Text
View/download PDF

5. Search for low-mass dark matter WIMPs with 12 ton-day exposure of DarkSide-50

Author

Agnes, P., Albuquerque, I.F.M., Alexander, T., Alton, A.K., Ave, M., Back, H.O., Batignani, G., Biery, K., Bocci, V., Bonivento, W.M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Campos, M.D., Canci, N., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Cataudella, V., Cavalcante, P., Cavuoti, S., Chashin, S., Chepurnov, A., Cicalò, C., Covone, G., d'Angelo, D., Davini, S., de Candia, A., de Cecco, S., de Filippis, G., de Rosa, G., Derbin, A.V., Devoto, A., d'Incecco, M., Dionisi, C., Dordei, F., Downing, M., d'Urso, D., Fairbairn, M., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G.K., Goretti, A.M., Di Cortona, G. Grilli, Grobov, A., Gromov, M., Guan, M., Gulino, M., Hackett, B.R., Herner, K., Hessel, T., Hosseini, B., Hubaut, F., Hungerford, E.V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C.L., Kimura, M., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Lychagina, O., Machulin, I.N., Mapelli, L.P., Mari, S.M., Maricic, J., Martoff, C.J., Messina, A., Milincic, R., Monroe, J., Morrocchi, M., Mougeot, X., Muratova, V.N., Musico, P., Nozdrina, A.O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Piacentini, S., Picciau, E., Pocar, A., Poehlmann, D.M., Pordes, S., Poudel, S.S., Pralavorio, P., Price, D.D., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A.L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sanford, E., Savarese, C., Schlitzer, B., Semenov, D.A., Shchagin, A., Sheshukov, A., Skorokhvatov, M.D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E.V., Vishneva, A., Vogelaar, R.B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M.M., Xiao, X., Yang, C., Zuzel, G., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Caravati, M., Cargioli, N., Cariello, M., Carlini, M., Cataudella, V., Cavalcante, P., Cavuoti, S., Chashin, S., Chepurnov, A., Cicalò, C., Covone, G., D’Angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D’Incecco, M., Dionisi, C., Dordei, F., Downing, M., D’Urso, D., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Goretti, A. M., Grilli di Cortona, G., Grobov, A., Gromov, M., Guan, M., Gulino, M., Hackett, B. R., Herner, K., Hessel, T., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kimura, M., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Lychagina, O., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Messina, A., Milincic, R., Monroe, J., Morrocchi, M., Mougeot, X., Muratova, V. N., Musico, P., Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Piacentini, S., Pocar, A., Poehlmann, D. M., Pordes, S., Poudel, S. S., Pralavorio, P., Price, D. D., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Sandford, E., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M. M., Xiao, X., Yang, C., Zuzel, G., Royal Holloway [University of London] (RHUL), Universidade de São Paulo = University of São Paulo (USP), Pacific Northwest National Laboratory (PNNL), University of South Dakota [Vermillion] (USD), Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Fermi National Accelerator Laboratory (Fermilab), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (INFN, Sezione di Cagliari), Università degli studi di Genova = University of Genoa (UniGe), Princeton University, Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Gran Sasso Science Institute, INFN, University of Naples Federico II = Università degli studi di Napoli Federico II, Virginia Tech [Blacksburg], D.V. Skobeltsyn Institute of Nuclear Physics (SINP), Lomonosov Moscow State University (MSU), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Università degli Studi di Cagliari = University of Cagliari (UniCa), University of Massachusetts System (UMASS), Università degli Studi di Sassari = University of Sassari [Sassari] (UNISS), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (INFN, Sezione di Napoli), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), INFN Frascati, Institute of Molecular Genetics of National Research Centre «Kurchatov Institute» [Moscow, Russia], Russian Academy of Sciences [Moscow] (RAS), Institute of High Energy Physics [Beijing] (IHEP), Chinese Academy of Sciences [Changchun Branch] (CAS), Università degli Studi di Enna ' KORE ' = Kore University of Enna, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), University of Houston, Black Hills State University, Nicolaus Copernicus Astronomical Cente (AstroCeNT), Joint Institute for Nuclear Research (JINR), Belgorod National Research University, University of California [Los Angeles] (UCLA), University of California (UC), University of Hawai'i [Hilo], Laboratoire National Henri Becquerel (LNHB), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département d'instrumentation Numérique (DIN (CEA-LIST)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Università degli Studi di Perugia = University of Perugia (UNIPG), Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN), Università degli studi di Catania = University of Catania (Unict), INFN Laboratori Nazionali del Gran Sasso, University of Massachusetts [Amherst] (UMass Amherst), University of Manchester [Manchester], Università degli Studi di Milano = University of Milan (UNIMI), Università degli Studi Roma Tre = Roma Tre University (ROMA TRE), Moscow State Engineering Physics Institute (MEPhI), Università degli Studi di Roma 'La Sapienza' = Sapienza University [Rome] (UNIROMA), Nicolaus Copernicus Astronomical Center (AstroCENT), Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ), SCOAP, DarkSide-50, and HEP, INSPIRE

Subjects
WIMP nucleon: scattering, data analysis method, Cosmology and Nongalactic Astrophysics (astro-ph.CO), dark matter: interaction, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], dark matter interaction, background: model, FOS: Physical sciences, WIMP: mass, WIMP nucleon scattering, spin: dependence, Detector calibration, WIMP: dark matter, spin dependence, argon: target, dark matter, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], detector: calibration, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], cross section: upper limit, instrumentation, detector, mass dependence, Gran Sasso, WIMP mass, radioactivity, argon, [PHYS.ASTR] Physics [physics]/Astrophysics [astro-ph], [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph], experimental results, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

We report on the search for dark matter WIMPs in the mass range below 10 GeV/c$^2$, from the analysis of the entire dataset acquired with a low-radioactivity argon target by the DarkSide-50 experiment at LNGS. The new analysis benefits from more accurate calibration of the detector response, improved background model, and better determination of systematic uncertainties, allowing us to accurately model the background rate and spectra down to 0.06 keV$_{er}$. A 90% C.L. exclusion limit for the spin-independent cross section of 3 GeV/c$^2$ mass WIMP on nucleons is set at 6$\times$10$^{-43}$ cm$^2$, about a factor 10 better than the previous DarkSide-50 limit. This analysis extends the exclusion region for spin-independent dark matter interactions below the current experimental constraints in the $[1.2, 3.6]$ GeV/c$^2$ WIMP mass range., 11 pages, 12 figures

Published
2023
Full Text
View/download PDF

9. Calibration of the liquid argon ionization response to low energy electronic and nuclear recoils with DarkSide-50

Author

The DarkSide Collaboration, Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Chepurnov, A., Cical��, C., Cocco, A. G., Covone, G., D'Angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D'Incecco, M., Dionisi, C., Dordei, F., Downing, M., D'Urso, D., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Grobov, A., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Herner, K., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Morrocchi, M., Mougeot, X., Muratova, V. N., Musico, P., Agasson, A. Navrer, Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Picciau, E., Pocar, A., Pordes, S., Poudel, S. S., Pralavorio, P., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M. M., Xiao, X., Yang, C., Zuzel, G., Agnes, P., Albuquerque, I. F. M., Alexander, T., Alton, A. K., Ave, M., Back, H. O., Batignani, G., Biery, K., Bocci, V., Bonivento, W. M., Bottino, B., Bussino, S., Cadeddu, M., Cadoni, M., Calaprice, F., Caminata, A., Canci, N., Caravati, M., Cariello, M., Carlini, M., Carpinelli, M., Catalanotti, S., Cataudella, V., Cavalcante, P., Cavuoti, S., Chepurnov, A., Cicalò, C., Cocco, A. G., Covone, G., D’Angelo, D., Davini, S., De Candia, A., De Cecco, S., De Filippis, G., De Rosa, G., Derbin, A. V., Devoto, A., D’Incecco, M., Dionisi, C., Dordei, F., Downing, M., D’Urso, D., Fiorillo, G., Franco, D., Gabriele, F., Galbiati, C., Ghiano, C., Giganti, C., Giovanetti, G. K., Gorchakov, O., Goretti, A. M., Grobov, A., Gromov, M., Guan, M., Guardincerri, Y., Gulino, M., Hackett, B. R., Herner, K., Hosseini, B., Hubaut, F., Hungerford, E. V., Ianni, An., Ippolito, V., Keeter, K., Kendziora, C. L., Kochanek, I., Korablev, D., Korga, G., Kubankin, A., Kuss, M., La Commara, M., Lai, M., Li, X., Lissia, M., Longo, G., Machulin, I. N., Mapelli, L. P., Mari, S. M., Maricic, J., Martoff, C. J., Messina, A., Meyers, P. D., Milincic, R., Morrocchi, M., Mougeot, X., Muratova, V. N., Musico, P., Navrer Agasson, A., Nozdrina, A. O., Oleinik, A., Ortica, F., Pagani, L., Pallavicini, M., Pandola, L., Pantic, E., Paoloni, E., Pelczar, K., Pelliccia, N., Picciau, E., Pocar, A., Pordes, S., Poudel, S. S., Pralavorio, P., Ragusa, F., Razeti, M., Razeto, A., Renshaw, A. L., Rescigno, M., Rode, J., Romani, A., Sablone, D., Samoylov, O., Sands, W., Sanfilippo, S., Savarese, C., Schlitzer, B., Semenov, D. A., Shchagin, A., Sheshukov, A., Skorokhvatov, M. D., Smirnov, O., Sotnikov, A., Stracka, S., Suvorov, Y., Tartaglia, R., Testera, G., Tonazzo, A., Unzhakov, E. V., Vishneva, A., Vogelaar, R. B., Wada, M., Wang, H., Wang, Y., Westerdale, S., Wojcik, M. M., Xiao, X., Yang, C., Zuzel, G., University of Houston, Universidade de São Paulo = University of São Paulo (USP), Pacific Northwest National Laboratory (PNNL), Augustana University, Istituto Nazionale di Fisica Nucleare [Pisa] (INFN), Istituto Nazionale di Fisica Nucleare (INFN), Fermi National Accelerator Laboratory (Fermilab), Istituto Nazionale di Fisica Nucleare [Sezione di Roma 1] (INFN), Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari (INFN, Sezione di Cagliari), Istituto Nazionale di Fisica Nucleare, Sezione di Genova (INFN, Sezione di Genova), Università degli Studi di Cagliari = University of Cagliari (UniCa), Princeton University, INFN Laboratori Nazionali del Gran Sasso, (INFN), Università degli Studi di Sassari = University of Sassari [Sassari] (UNISS), University of Naples Federico II = Università degli studi di Napoli Federico II, Virginia Tech [Blacksburg], D.V. Skobeltsyn Institute of Nuclear Physics (SINP), Lomonosov Moscow State University (MSU), Istituto Nazionale di Fisica Nucleare, Sezione di Napoli (INFN, Sezione di Napoli), Università degli Studi di Milano = University of Milan (UNIMI), Saint Petersburg Nuclear Physics Institute RAS, St Petersburg Nuclear Physics Institute, University of Massachusetts [Amherst] (UMass Amherst), University of Massachusetts System (UMASS), AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité), Laboratoire de Physique Nucléaire et de Hautes Énergies (LPNHE (UMR_7585)), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Joint Institute for Nuclear Research (JINR), Institute of Molecular Genetics of National Research Centre «Kurchatov Institute» [Moscow, Russia], Russian Academy of Sciences [Moscow] (RAS), Institute of High Energy Physics [Beijing] (IHEP), Chinese Academy of Sciences [Changchun Branch] (CAS), Università degli Studi di Enna ' KORE ' = Kore University of Enna, Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Black Hills State University, Belgorod National Research University, University of California [Los Angeles] (UCLA), University of California (UC), Istituto Nazionale di Fisica Nucleare, Sezione di Roma 3 (INFN, Sezione di Roma 3), University of Hawai'i [Honolulu] (UH), Temple University [Philadelphia], Pennsylvania Commonwealth System of Higher Education (PCSHE), University of Hawai'i [Hilo], Laboratoire National Henri Becquerel (LNHB), Département Métrologie Instrumentation & Information (DM2I), Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Laboratoire d'Intégration des Systèmes et des Technologies (LIST (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département d'instrumentation Numérique (DIN (CEA-LIST)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Belgorod National Research University, 308015 Belgorod, Russia, Università degli Studi di Perugia = University of Perugia (UNIPG), Università degli studi di Genova = University of Genoa (UniGe), Istituto Nazionale di Fisica Nucleare, Sezione di Catania (INFN), Università degli studi di Catania = University of Catania (Unict), University of California [Davis] (UC Davis), Istituto Nazionale di Fisica Nucleare, Sezione di Milano (INFN), Università degli Studi Roma Tre = Roma Tre University (ROMA TRE), Gran Sasso Science Institute (GSSI), Uniwersytet Jagielloński w Krakowie = Jagiellonian University (UJ), DarkSide, ANR-18-IDEX-0001,Université de Paris,Université de Paris(2018), Cicalo, C., D'Angelo, D., D'Incecco, M., D'Urso, D., Ianni, A., Agnes, P, Albuquerque, I, Alexander, T, Alton, A, Ave, M, Back, H, Batignani, G, Biery, K, Bocci, V, Bonivento, W, Bottino, B, Bussino, S, Cadeddu, M, Cadoni, M, Calaprice, F, Caminata, A, Canci, N, Caravati, M, Cariello, M, Carlini, M, Carpinelli, M, Catalanotti, S, Cataudella, V, Cavalcante, P, Cavuoti, S, Chepurnov, A, Cicalo, C, Cocco, A, Covone, G, D'Angelo, D, Davini, S, De Candia, A, De Cecco, S, De Filippis, G, De Rosa, G, Derbin, A, Devoto, A, D'Incecco, M, Dionisi, C, Dordei, F, Downing, M, D'Urso, D, Fiorillo, G, Franco, D, Gabriele, F, Galbiati, C, Ghiano, C, Giganti, C, Giovanetti, G, Gorchakov, O, Goretti, A, Grobov, A, Gromov, M, Guan, M, Guardincerri, Y, Gulino, M, Hackett, B, Herner, K, Hosseini, B, Hubaut, F, Hungerford, E, Ianni, A, Ippolito, V, Keeter, K, Kendziora, C, Kochanek, I, Korablev, D, Korga, G, Kubankin, A, Kuss, M, La Commara, M, Lai, M, Li, X, Lissia, M, Longo, G, Machulin, I, Mapelli, L, Mari, S, Maricic, J, Martoff, C, Messina, A, Meyers, P, Milincic, R, Morrocchi, M, Mougeot, X, Muratova, V, Musico, P, Navrer Agasson, A, Nozdrina, A, Oleinik, A, Ortica, F, Pagani, L, Pallavicini, M, Pandola, L, Pantic, E, Paoloni, E, Pelczar, K, Pelliccia, N, Picciau, E, Pocar, A, Pordes, S, Poudel, S, Pralavorio, P, Ragusa, F, Razeti, M, Razeto, A, Renshaw, A, Rescigno, M, Rode, J, Romani, A, Sablone, D, Samoylov, O, Sands, W, Sanfilippo, S, Savarese, C, Schlitzer, B, Semenov, D, Shchagin, A, Sheshukov, A, Skorokhvatov, M, Smirnov, O, Sotnikov, A, Stracka, S, Suvorov, Y, Tartaglia, R, Testera, G, Tonazzo, A, Unzhakov, E, Vishneva, A, Vogelaar, R, Wada, M, Wang, H, Wang, Y, Westerdale, S, Wojcik, M, Xiao, X, Yang, C, Zuzel, G, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Paris (UP), and Laboratoire d'Intégration des Systèmes et des Technologies (LIST)

Subjects
Physics - Instrumentation and Detectors, Physics::Instrumentation and Detectors, Electron, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, electron recoil, High Energy Physics - Experiment (hep-ex), Recoil, n: irradiation, electron: recoil, ionization chamber, Ionization, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Physics::Atomic Physics, nucleus recoil, Nuclear Experiment, nuclear instrumentation, nucleus: recoil, instrumentation, Physics, Range (particle radiation), irradiation, Instrumentation and Detectors (physics.ins-det), 3. Good health, Projection (relational algebra), Astrophysics - Instrumentation and Methods for Astrophysics, ionizing radiation, Calibration liquid argon ionization electronic and nuclear recoils dark matter, ionization: yield, FOS: Physical sciences, Electrons, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], DarkSide-50, Nuclear physics, ionization yield, numerical methods, 0103 physical sciences, Neutron, [PHYS.PHYS.PHYS-INS-DET]Physics [physics]/Physics [physics]/Instrumentation and Detectors [physics.ins-det], numerical calculations, 010306 general physics, Instrumentation and Methods for Astrophysics (astro-ph.IM), 010308 nuclear & particles physics, neutrons, Neutron radiation, time projection chamber: liquid argon, calibration, time projection chamber, liquid argon, WIMP: interaction, WIMP interaction, Yield (chemistry)
Abstract

DarkSide-50 has demonstrated the high potential of dual-phase liquid argon time projection chambers in exploring interactions of WIMPs in the GeV/c$^2$ mass range. The technique, based on the detection of the ionization signal amplified via electroluminescence in the gas phase, allows to explore recoil energies down to the sub-keV range. We report here on the DarkSide-50 measurement of the ionization yield of electronic recoils down to $\sim$180~eV$_{er}$, exploiting $^{37}$Ar and $^{39}$Ar decays, and extrapolated to a few ionization electrons with the Thomas-Imel box model. Moreover, we present a model-dependent determination of the ionization response to nuclear recoils down to $\sim$500~eV$_{nr}$, the lowest ever achieved in liquid argon, using \textit{in situ} neutron calibration sources and external datasets from neutron beam experiments., Comment: 11 pages, 12 figures, 1 table

Published
2021
Full Text
View/download PDF

23. Gauge k-vortices

Author

Babichev, E [INFN, Laboratori Nazionali del Gran Sasso, S.S. 17bis, 67010 Assergi, L'Aquila (Italy) and Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7a, 117312 Moscow (Russian Federation)]

Published
2008
Full Text
View/download PDF

34. The SOX experiment in the neutrino physics

Author

Di Noto, L., Agostini, M., Althenmüller, K., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravo-Berguño, D., Caccianiga, B., Cadonati, L., Calaprice, F., Caminata, A., Cavalcante, P., Chavarria, A., Chepurnov, A., Cribier, M., D'Angelo, D., Davini, S., Derbin, A., Durero, M., Empl, A., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gaffiot, F., Galbiati, C., Gazzana, S., Ghiano, C., Giammarchi, M., Göger-Neff, M., Goretti, A., Grandi, L., Gromov, M., Hagner, C., Houdy, Th., Hungerford, E., Ianni, Al., Ianni, An., Jonquères, N., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Lasserre, T., Laubenstein, M., Lehnert, T., Lewke, T., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Maricic, J., Meindl, Q., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, Marcin, Montuschi, M., Mosteiro, P., Musenich, R., Muratova, V., Oberauer, L., Obolensky, M., Ortica, F., Otis, K., Pallavicini, M., Papp, L., Perasso, L., Perasso, S., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Rossi, N., Saldanha, R., Salvo, C., Schönert, S., Scola, L., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Veyssière, C., Vivier, M., Vogelaar, R. B., von Feilitzsch, F., Wang, H., Winter, J., Wójcik, Marcin, Wright, A., Wurm, M., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, Grzegorz, Gabriele, J., Di Noto, L., Agostini, M., Althenmueller, K., Bellini, G., Benziger, J., Berton, N., Bick, D., Bonfini, G., Bravo-Berguno, D., Caccianiga, B., Cadonati, L., Calaprice, F., Caminata, A., Cavalcante, P., Chavarria, A., Chepurnov, A., Cribier, M., Dangelo, D., Davini, S., Derbin, A., Durero, M., Empl, A., Etenko, A., Farinon, S., Fischer, V., Fomenko, K., Franco, D., Gabriele, F., Gaffiot, J., Galbiati, C., Gazzana, S., Ghiano, C., Giammarchi, M., Goeger-Neff, M., Goretti, A., Grandi, L., Gromov, M., Hagner, C., Houdy, Th., Hungerford, E., Ianni, Al., Ianni, An., Jonqueres, N., Kobychev, V., Korablev, D., Korga, G., Kryn, D., Lasserre, T., Laubenstein, M., Lehnert, T., Lewke, T., Litvinovich, E., Lombardi, F., Lombardi, P., Ludhova, L., Lukyanchenko, G., Machulin, I., Manecki, S., Maneschg, W., Marcocci, S., Maricic, J., Meindl, Q., Mention, G., Meroni, E., Meyer, M., Miramonti, L., Misiaszek, M., Montuschi, M., Mosteiro, P., Musenich, R., Muratova, V., Oberauer, L., Obolensky, M., Ortica, F., Otis, K., Pallavicini, M., Papp, L., Perasso, L., Perasso, S., Pocar, A., Ranucci, G., Razeto, A., Re, A., Romani, A., Rossi, N., Saldanha, R., Salvo, C., Schoenert, S., Scola, L., Simgen, H., Skorokhvatov, M., Smirnov, O., Sotnikov, A., Sukhotin, S., Suvorov, Y., Tartaglia, R., Testera, G., Veyssiere, C., Vivier, M., Vogelaar, R. B., Von Feilitzsch, F., Wang, H., Winter, J., Wojcik, M., Wright, A., Wurm, M., Zaimidoroga, O., Zavatarelli, S., Zuber, K., Zuzel, G., Dipartimento di Fisica, Università di Genova e Sezione INFN, Department de Física, Universitat de les Illes Balears, Dipartimento di Fisica, Universita degli Studi e INFN, Chemical Engineering Department, Princeton University, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Institut Supérieur de l'Aéronautique et de l'Espace (ISAE-SUPAERO), INFN Laboratori Nazionali del Gran Sasso, Physics Department, Virginia Polytechnic Institute and State University, Physics Department, University of Massachusetts, Physics Department, Princeton University, Lomonosov Moscow State University Skobeltsyn Institute of Nuclear Physics, AstroParticule et Cosmologie (APC (UMR_7164)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS), Department of Physics, University of Houston, StPetersburg Nuclear Physics Institute, Kurchatov Institute, Joint Institute for Nuclear Research (JINR), Bureau de Conception Calculs et Réalisations (BCCR), Service d'Etudes Mécaniques et Thermiques (SEMT), Département de Modélisation des Systèmes et Structures (DM2S), CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Département de Modélisation des Systèmes et Structures (DM2S), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Kiev Institute for Nuclear Research, Max-Planck-Institut fur Kernphysik, Gran Sasso Science Institute, INFN, Department of Physics and Astronomy, University of Hawaii, M. Smoluchowski Institute of Physics, Jagellonian University, Dipartimento di Chimica, Biologia e Biotecnologie, Universita degli Studi e INFN, Physics and Astronomy Department, University of California Los Angeles, Los Angeles, Institut für Physik und Astronomie, Universität Potsdam, and Department of Physics, Technische Universitat Dresden

Subjects
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Abstract

International audience; SOX (Short distance neutrino Oscillations with BoreXino) is a new experiment that takes place at the Laboratori Nazionali del Gran Sasso (LNGS) and it exploits the Borexino detector to study the neutrino oscillations at short distance. In different phases, by using two artificial sources 51Cr and 144Ce-144Pr, neutrino and antineutrino fluxes of measured intensity will be detected by Borexino in order to observe possible neutrino oscillations in the sterile state. In this paper an overview of the experiment is given and one of the two calorimeters that will be used to measure the source activity is described. At the end the expected sensitivity to determine the neutrino sterile mass is shown.

Published
2015
Full Text
View/download PDF

35. Role of Nonlinear Landau Damping for Cosmic-Ray Transport.

Author

Schroer B, Caprioli D, and Blasi P

Abstract

We present the first assessment, using hybrid PIC simulations, of the role of nonlinear Landau damping in the process of self-generated scattering in a high β plasma, conditions appropriate for CR scattering in the halo of the Galaxy. The drift speed of CRs reduces due to scattering, but remains super-Alfvénic due to damping. Furthermore, this damping process manifests itself in the form of heating of the background plasma. We also show that the damping leads to an inverse cascade process, consisting of producing nonresonant large scale modes, a novel result with many potential phenomenological implications.

Published
2025
Full Text
View/download PDF

36. Inference of the Mass Composition of Cosmic Rays with Energies from 10^{18.5} to 10^{20}  eV Using the Pierre Auger Observatory and Deep Learning.

Author

Abdul Halim A, Abreu P, Aglietta M, Allekotte I, Almeida Cheminant K, Almela A, Aloisio R, Alvarez-Muñiz J, Ammerman Yebra J, Anastasi GA, Anchordoqui L, Andrada B, Andrade Dourado L, Andringa S, Apollonio L, Aramo C, Araújo Ferreira PR, Arnone E, Arteaga Velázquez JC, Assis P, Avila G, Avocone E, Bakalova A, Barbato F, Bartz Mocellin A, Berat C, Bertaina ME, Bhatta G, Bianciotto M, Biermann PL, Binet V, Bismark K, Bister T, Biteau J, Blazek J, Bleve C, Blümer J, Boháčová M, Boncioli D, Bonifazi C, Bonneau Arbeletche L, Borodai N, Brack J, Brichetto Orchera PG, Briechle FL, Bueno A, Buitink S, Buscemi M, Büsken M, Bwembya A, Caballero-Mora KS, Cabana-Freire S, Caccianiga L, Campuzano F, Caruso R, Castellina A, Catalani F, Cataldi G, Cazon L, Cerda M, Čermáková B, Cermenati A, Chinellato JA, Chudoba J, Chytka L, Clay RW, Cobos Cerutti AC, Colalillo R, Coluccia MR, Conceição R, Condorelli A, Consolati G, Conte M, Convenga F, Correia Dos Santos D, Costa PJ, Covault CE, Cristinziani M, Cruz Sanchez CS, Dasso S, Daumiller K, Dawson BR, de Almeida RM, de Errico B, de Jesús J, de Jong SJ, de Mello Neto JRT, De Mitri I, de Oliveira J, de Oliveira Franco D, de Palma F, de Souza V, De Vito E, Del Popolo A, Deligny O, Denner N, Deval L, di Matteo A, do JA, Dobre M, Dobrigkeit C, D'Olivo JC, Domingues Mendes LM, Dorosti Q, Dos Anjos JC, Dos Anjos RC, Ebr J, Ellwanger F, Emam M, Engel R, Epicoco I, Erdmann M, Etchegoyen A, Evoli C, Falcke H, Farrar G, Fauth AC, Fehler T, Feldbusch F, Fenu F, Fernandes A, Fick B, Figueira JM, Filip P, Filipčič A, Fitoussi T, Flaggs B, Fodran T, Fujii T, Fuster A, Galea C, García B, Gaudu C, Gherghel-Lascu A, Ghia PL, Giaccari U, Glombitza J, Gobbi F, Gollan F, Golup G, Gómez Berisso M, Gómez Vitale PF, Gongora JP, González JM, González N, Góra D, Gorgi A, Gottowik M, Guarino F, Guedes GP, Guido E, Gülzow L, Hahn S, Hamal P, Hampel MR, Hansen P, Harari D, Harvey VM, Haungs A, Hebbeker T, Hojvat C, Hörandel JR, Horvath P, Hrabovský M, Huege T, Insolia A, Isar PG, Janecek P, Jilek V, Johnsen JA, Jurysek J, Kampert KH, Keilhauer B, Khakurdikar A, Kizakke Covilakam VV, Klages HO, Kleifges M, Knapp F, Köhler J, Krieger F, Kunka N, Lago BL, Langner N, Leigui de Oliveira MA, Lema-Capeans Y, Letessier-Selvon A, Lhenry-Yvon I, Lopes L, Lu L, Luce Q, Lundquist JP, Machado Payeras A, Majercakova M, Mandat D, Manning BC, Mantsch P, Mariani FM, Mariazzi AG, Mariş IC, Marsella G, Martello D, Martinelli S, Martínez Bravo O, Martins MA, Mathes HJ, Matthews J, Matthiae G, Mayotte E, Mayotte S, Mazur PO, Medina-Tanco G, Meinert J, Melo D, Menshikov A, Merx C, Michal S, Micheletti MI, Miramonti L, Mollerach S, Montanet F, Morejon L, Mulrey K, Mussa R, Namasaka WM, Negi S, Nellen L, Nguyen K, Nicora G, Niechciol M, Nitz D, Nosek D, Novotny V, Nožka L, Nucita A, Núñez LA, Oliveira C, Palatka M, Pallotta J, Panja S, Parente G, Paulsen T, Pawlowsky J, Pech M, Pȩkala J, Pelayo R, Pelgrims V, Pereira LAS, Pereira Martins EE, Pérez Bertolli C, Perrone L, Petrera S, Petrucci C, Pierog T, Pimenta M, Platino M, Pont B, Pothast M, Pourmohammad Shahvar M, Privitera P, Prouza M, Querchfeld S, Rautenberg J, Ravignani D, Reginatto Akim JV, Reininghaus M, Reuzki A, Ridky J, Riehn F, Risse M, Rizi V, Rodrigues de Carvalho W, Rodriguez E, Rodriguez Rojo J, Roncoroni MJ, Rossoni S, Roth M, Roulet E, Rovero AC, Saftoiu A, Saharan M, Salamida F, Salazar H, Salina G, Sanabria Gomez JD, Sánchez F, Santos EM, Santos E, Sarazin F, Sarmento R, Sato R, Savina P, Schäfer CM, Scherini V, Schieler H, Schimassek M, Schimp M, Schmidt D, Scholten O, Schoorlemmer H, Schovánek P, Schröder FG, Schulte J, Schulz T, Sciutto SJ, Scornavacche M, Sedoski A, Segreto A, Sehgal S, Shivashankara SU, Sigl G, Simkova K, Simon F, Smau R, Šmída R, Sommers P, Squartini R, Stadelmaier M, Stanič S, Stasielak J, Stassi P, Strähnz S, Straub M, Suomijärvi T, Supanitsky AD, Svozilikova Z, Szadkowski Z, Tairli F, Tapia A, Taricco C, Timmermans C, Tkachenko O, Tobiska P, Todero Peixoto CJ, Tomé B, Torrès Z, Travaini A, Travnicek P, Tueros M, Unger M, Uzeiroska R, Vaclavek L, Vacula M, Valdés Galicia JF, Valore L, Varela E, Vašíčková V, Vásquez-Ramírez A, Veberič D, Vergara Quispe ID, Verzi V, Vicha J, Vink J, Vorobiov S, Watanabe C, Watson AA, Weindl A, Wiencke L, Wilczyński H, Wittkowski D, Wundheiler B, Yue B, Yushkov A, Zapparrata O, Zas E, Zavrtanik D, and Zavrtanik M

Abstract

We present measurements of the atmospheric depth of the shower maximum X_{max}, inferred for the first time on an event-by-event level using the surface detector of the Pierre Auger Observatory. Using deep learning, we were able to extend measurements of the X_{max} distributions up to energies of 100 EeV (10^{20}  eV), not yet revealed by current measurements, providing new insights into the mass composition of cosmic rays at extreme energies. Gaining a 10-fold increase in statistics compared to the fluorescence detector data, we find evidence that the rate of change of the average X_{max} with the logarithm of energy features three breaks at 6.5±0.6(stat)±1(syst)  EeV, 11±2(stat)±1(syst)  EeV, and 31±5(stat)±3(syst)  EeV, in the vicinity to the three prominent features (ankle, instep, suppression) of the cosmic-ray flux. The energy evolution of the mean and standard deviation of the measured X_{max} distributions indicates that the mass composition becomes increasingly heavier and purer, thus being incompatible with a large fraction of light nuclei between 50 and 100 EeV.

Published
2025
Full Text
View/download PDF

37. Search for Fractionally Charged Particles with CUORE.

Author

Adams DQ, Alduino C, Alfonso K, Avignone FT, Azzolini O, Bari G, Bellini F, Benato G, Beretta M, Biassoni M, Branca A, Brofferio C, Bucci C, Camilleri J, Caminata A, Campani A, Cao J, Capelli S, Capelli C, Cappelli L, Cardani L, Carniti P, Casali N, Celi E, Chiesa D, Clemenza M, Copello S, Cremonesi O, Creswick RJ, D'Addabbo A, Dafinei I, Del Corso F, Dell'Oro S, Di Domizio S, Di Lorenzo S, Dixon T, Dompè V, Fang DQ, Fantini G, Faverzani M, Ferri E, Ferroni F, Fiorini E, Franceschi MA, Freedman SJ, Fu SH, Fujikawa BK, Ghislandi S, Giachero A, Girola M, Gironi L, Giuliani A, Gorla P, Gotti C, Guillaumon PV, Gutierrez TD, Han K, Hansen EV, Heeger KM, Helis DL, Huang HZ, Keppel G, Kolomensky YG, Kowalski R, Liu R, Ma L, Ma YG, Marini L, Maruyama RH, Mayer D, Mei Y, Moore MN, Napolitano T, Nastasi M, Nones C, Norman EB, Nucciotti A, Nutini I, O'Donnell T, Olmi M, Oregui BT, Ouellet JL, Pagan S, Pagliarone CE, Pagnanini L, Pallavicini M, Pattavina L, Pavan M, Pessina G, Pettinacci V, Pira C, Pirro S, Pottebaum EG, Pozzi S, Previtali E, Puiu A, Quitadamo S, Ressa A, Rosenfeld C, Schmidt B, Sharma V, Singh V, Sisti M, Speller D, Stark P, Surukuchi PT, Taffarello L, Tomei C, Torres A, Torres JA, Vetter KJ, Vignati M, Wagaarachchi SL, Welliver B, Wilson J, Wilson K, Winslow LA, Zimmermann S, and Zucchelli S

Abstract

The Cryogenic Underground Observatory for Rare Events (CUORE) is a detector array comprised by 988 5  cm×5  cm×5  cm TeO_{2} crystals held below 20 mK, primarily searching for neutrinoless double-beta decay in ^{130}Te. Unprecedented in size among cryogenic calorimetric experiments, CUORE provides a promising setting for the study of exotic throughgoing particles. Using the first tonne year of CUORE's exposure, we perform a search for hypothesized fractionally charged particles (FCPs), which are well-motivated by various standard model extensions and would have suppressed interactions with matter. Across the searched range of charges e/24-e/2 no excess of FCP candidate tracks is observed over background, setting leading limits on the underground FCP flux with charges e/24-e/5 at 90% confidence level. Using the low background environment and segmented geometry of CUORE, we establish the sensitivity of tonne-scale subkelvin detectors to diverse signatures of new physics.

Published
2024
Full Text
View/download PDF

38. First Indication of Solar ^{8}B Neutrinos via Coherent Elastic Neutrino-Nucleus Scattering with XENONnT.

Author

Aprile E, Aalbers J, Abe K, Ahmed Maouloud S, Althueser L, Andrieu B, Angelino E, Antón Martin D, Arneodo F, Baudis L, Bazyk M, Bellagamba L, Biondi R, Bismark A, Boese K, Brown A, Bruno G, Budnik R, Cai C, Capelli C, Cardoso JMR, Cimental Chávez AP, Colijn AP, Conrad J, Cuenca-García JJ, D'Andrea V, Daniel Garcia LC, Decowski MP, Deisting A, Di Donato C, Di Gangi P, Diglio S, Eitel K, Elykov A, Ferella AD, Ferrari C, Fischer H, Flehmke T, Flierman M, Fulgione W, Fuselli C, Gaemers P, Gaior R, Galloway M, Gao F, Ghosh S, Giacomobono R, Glade-Beucke R, Grandi L, Grigat J, Guan H, Guida M, Gyorgy P, Hammann R, Higuera A, Hils C, Hoetzsch L, Hood NF, Iacovacci M, Itow Y, Jakob J, Joerg F, Kaminaga Y, Kara M, Kavrigin P, Kazama S, Kobayashi M, Koke D, Kopec A, Kuger F, Landsman H, Lang RF, Levinson L, Li I, Li S, Liang S, Lin YT, Lindemann S, Lindner M, Liu K, Liu M, Loizeau J, Lombardi F, Long J, Lopes JAM, Luce T, Ma Y, Macolino C, Mahlstedt J, Mancuso A, Manenti L, Marignetti F, Marrodán Undagoitia T, Martens K, Masbou J, Masson E, Mastroianni S, Melchiorre A, Merz J, Messina M, Michael A, Miuchi K, Molinario A, Moriyama S, Morå K, Mosbacher Y, Murra M, Müller J, Ni K, Oberlack U, Paetsch B, Pan Y, Pellegrini Q, Peres R, Peters C, Pienaar J, Pierre M, Plante G, Pollmann TR, Principe L, Qi J, Qin J, Ramírez García D, Rajado M, Singh R, Sanchez L, Dos Santos JMF, Sarnoff I, Sartorelli G, Schreiner J, Schulte P, Schulze Eißing H, Schumann M, Scotto Lavina L, Selvi M, Semeria F, Shagin P, Shi S, Shi J, Silva M, Simgen H, Takeda A, Tan PL, Thers D, Toschi F, Trinchero G, Tunnell CD, Tönnies F, Valerius K, Vecchi S, Vetter S, Villazon Solar FI, Volta G, Weinheimer C, Weiss M, Wenz D, Wittweg C, Wu VHS, Xing Y, Xu D, Xu Z, Yamashita M, Yang L, Ye J, Yuan L, Zavattini G, and Zhong M

Abstract

We present the first measurement of nuclear recoils from solar ^{8}B neutrinos via coherent elastic neutrino-nucleus scattering with the XENONnT dark matter experiment. The central detector of XENONnT is a low-background, two-phase time projection chamber with a 5.9 t sensitive liquid xenon target. A blind analysis with an exposure of 3.51  t×yr resulted in 37 observed events above 0.5 keV, with (26.4_{-1.3}^{+1.4}) events expected from backgrounds. The background-only hypothesis is rejected with a statistical significance of 2.73σ. The measured ^{8}B solar neutrino flux of (4.7_{-2.3}^{+3.6})×10^{6}  cm^{-2} s^{-1} is consistent with results from the Sudbury Neutrino Observatory. The measured neutrino flux-weighted CEνNS cross section on Xe of (1.1_{-0.5}^{+0.8})×10^{-39}  cm^{2} is consistent with the Standard Model prediction. This is the first direct measurement of nuclear recoils from solar neutrinos with a dark matter detector.

Published
2024
Full Text
View/download PDF

39. Simultaneous Measurement of the Half-Life and Spectral Shape of ^{115}In β Decay with an Indium Iodide Cryogenic Calorimeter.

Author

Pagnanini L, Benato G, Carniti P, Celi E, Chiesa D, Corbett J, Dafinei I, Di Domizio S, Di Stefano P, Ghislandi S, Gotti C, Helis DL, Knobel R, Kostensalo J, Kotila J, Nagorny S, Pessina G, Pirro S, Pozzi S, Puiu A, Quitadamo S, Sisti M, Suhonen J, and Kuznetsov S

Abstract

Current bounds on the neutrino Majorana mass are affected by significant uncertainties in the nuclear calculations for neutrinoless double-beta decay. A key issue for a data-driven improvement of the nuclear theory is the actual value of the axial coupling constant g_{A}, which can be investigated through forbidden β decays. We present the first measurement of the 4th-forbidden β decay of ^{115}In with a cryogenic calorimeter based on indium iodide. Exploiting the enhanced spectrum-shape method for the first time to this isotope, our study accurately determines simultaneously spectral shape, g_{A}, and half-life. The interacting shell model, which best fits our data, indicates a half-life for this decay at T_{1/2}=(5.26±0.06)×10^{14}  yr.

Published
2024
Full Text
View/download PDF

41. Plastic Fly: What Drosophila melanogaster Can Tell Us about the Biological Effects and the Carcinogenic Potential of Nanopolystyrene.

Author

Aloisi M, Grifoni D, Zarivi O, Colafarina S, Morciano P, and Poma AMG

Subjects
Animals, Carcinogens toxicity, Larva drug effects, Drosophila Proteins genetics, Drosophila Proteins metabolism, Longevity drug effects, Fat Body metabolism, Fat Body drug effects, Drosophila melanogaster drug effects, Drosophila melanogaster genetics, Polystyrenes toxicity, Nanoparticles toxicity, Nanoparticles chemistry
Abstract

Today, plastic pollution is one of the biggest threats to the environment and public health. In the tissues of exposed species, micro- and nano-fragments accumulate, leading to genotoxicity, altered metabolism, and decreased lifespan. A model to investigate the genotoxic and tumor-promoting potential of nanoplastics (NPs) is Drosophila melanogaster . Here we tested polystyrene, which is commonly used in food packaging, is not well recycled, and makes up at least 30% of landfills. In order to investigate the biological effects and carcinogenic potential of 100 µm polystyrene nanoparticles (PSNPs), we raised Oregon [R] wild-type flies on contaminated food. After prolonged exposure, fluorescent PSNPs accumulated in the gut and fat bodies. Furthermore, PSNP-fed flies showed considerable alterations in weight, developmental time, and lifespan, as well as a compromised ability to recover from starvation. Additionally, we noticed a decrease in motor activity in DNA lig4 mutants fed with PSNPs, which are known to be susceptible to dietary stressors. A qPCR molecular investigation of the larval intestines revealed a markedly elevated expression of the genes drice and p53 , suggesting a response to cell damage. Lastly, we used warts -defective mutants to assess the carcinogenic potential of PSNPs and discovered that exposed flies had more aberrant masses than untreated ones. In summary, our findings support the notion that ingested nanopolystyrene triggers metabolic and genetic modifications in the exposed organisms, eventually delaying development and accelerating death and disease.

Published
2024
Full Text
View/download PDF

42. Opportunities and limits of lunar gravitational-wave detection.

Author

Cozzumbo A, Mestichelli B, Mirabile M, Paiella L, Tissino J, and Harms J

Abstract

A new era of lunar exploration has begun with participation of all major space agencies. This activity brings opportunities for revolutionary science experiments and observatories on the Moon. The idea of a lunar gravitational-wave detector was already proposed during the Apollo programme. The key characteristic of the Moon is that it is seismically extremely quiet. It was also pointed out that the permanently shadowed regions at the lunar poles provide ideal conditions for gravitational-wave detection. In recent years, three different detector concepts were proposed with varying levels of technological complexity and science potential. In this paper, we confront the three concepts in terms of their observational capabilities based on a first more detailed modelling of instrumental noise. We identify important technological challenges and potential show-stoppers. This article is part of a discussion meeting issue 'Astronomy from the Moon: the next decades (part 2)'.

Published
2024
Full Text
View/download PDF

43. Demonstrating Agreement between Radio and Fluorescence Measurements of the Depth of Maximum of Extensive Air Showers at the Pierre Auger Observatory.

Author

Abdul Halim A, Abreu P, Aglietta M, Allekotte I, Cheminant KA, Almela A, Aloisio R, Alvarez-Muñiz J, Yebra JA, Anastasi GA, Anchordoqui L, Andrada B, Andringa S, Anukriti, Apollonio L, Aramo C, Ferreira PRA, Arnone E, Velázquez JCA, Assis P, Avila G, Avocone E, Bakalova A, Barbato F, Mocellin AB, Bellido JA, Berat C, Bertaina ME, Bhatta G, Bianciotto M, Biermann PL, Binet V, Bismark K, Bister T, Biteau J, Blazek J, Bleve C, Blümer J, Boháčová M, Boncioli D, Bonifazi C, Arbeletche LB, Borodai N, Brack J, Orchera PGB, Briechle FL, Bueno A, Buitink S, Buscemi M, Büsken M, Bwembya A, Caballero-Mora KS, Cabana-Freire S, Caccianiga L, Caruso R, Castellina A, Catalani F, Cataldi G, Cazon L, Cerda M, Cermenati A, Chinellato JA, Chudoba J, Chytka L, Clay RW, Cerutti ACC, Colalillo R, Coleman A, Coluccia MR, Conceição R, Condorelli A, Consolati G, Conte M, Convenga F, Dos Santos DC, Costa PJ, Covault CE, Cristinziani M, Sanchez CSC, Dasso S, Daumiller K, Dawson BR, de Almeida RM, de Jesús J, de Jong SJ, Neto JRTM, De Mitri I, de Oliveira J, Franco DO, de Palma F, de Souza V, de Errico BPS, De Vito E, Del Popolo A, Deligny O, Denner N, Deval L, di Matteo A, Dobre M, Dobrigkeit C, D'Olivo JC, Mendes LMD, Dorosti Q, Dos Anjos JC, Dos Anjos RC, Ebr J, Ellwanger F, Emam M, Engel R, Epicoco I, Erdmann M, Etchegoyen A, Evoli C, Falcke H, Farmer J, Farrar G, Fauth AC, Fazzini N, Feldbusch F, Fenu F, Fernandes A, Fick B, Figueira JM, Filipčič A, Fitoussi T, Flaggs B, Fodran T, Fujii T, Fuster A, Galea C, Galelli C, García B, Gaudu C, Gemmeke H, Gesualdi F, Gherghel-Lascu A, Ghia PL, Giaccari U, Glombitza J, Gobbi F, Gollan F, Golup G, Berisso MG, Vitale PFG, Gongora JP, González JM, González N, Goos I, Góra D, Gorgi A, Gottowik M, Grubb TD, Guarino F, Guedes GP, Guido E, Gülzow L, Hahn S, Hamal P, Hampel MR, Hansen P, Harari D, Harvey VM, Haungs A, Hebbeker T, Hojvat C, Hörandel JR, Horvath P, Hrabovský M, Huege T, Insolia A, Isar PG, Janecek P, Jilek V, Johnsen JA, Jurysek J, Kampert KH, Keilhauer B, Khakurdikar A, Covilakam VVK, Klages HO, Kleifges M, Knapp F, Köhler J, Kunka N, Lago BL, Langner N, de Oliveira MAL, Lema-Capeans Y, Letessier-Selvon A, Lhenry-Yvon I, Lopes L, Lu L, Luce Q, Lundquist JP, Payeras AM, Majercakova M, Mandat D, Manning BC, Mantsch P, Marafico S, Mariani FM, Mariazzi AG, Mariş IC, Marsella G, Martello D, Martinelli S, Bravo OM, Martins MA, Mathes HJ, Matthews J, Matthiae G, Mayotte E, Mayotte S, Mazur PO, Medina-Tanco G, Meinert J, Melo D, Menshikov A, Merx C, Michal S, Micheletti MI, Miramonti L, Mollerach S, Montanet F, Morejon L, Morello C, Mulrey K, Mussa R, Namasaka WM, Negi S, Nellen L, Nguyen K, Nicora G, Niechciol M, Nitz D, Nosek D, Novotny V, Nožka L, Nucita A, Núñez LA, Oliveira C, Palatka M, Pallotta J, Panja S, Parente G, Paulsen T, Pawlowsky J, Pech M, Pękala J, Pelayo R, Pereira LAS, Martins EEP, Armand JP, Bertolli CP, Perrone L, Petrera S, Petrucci C, Pierog T, Pimenta M, Platino M, Pont B, Pothast M, Shahvar MP, Privitera P, Prouza M, Puyleart A, Querchfeld S, Rautenberg J, Ravignani D, Akim JVR, Reininghaus M, Ridky J, Riehn F, Risse M, Rizi V, de Carvalho WR, Rodriguez E, Rojo JR, Roncoroni MJ, Rossoni S, Roth M, Roulet E, Rovero AC, Ruehl P, Saftoiu A, Saharan M, Salamida F, Salazar H, Salina G, Gomez JDS, Sánchez F, Santos EM, Santos E, Sarazin F, Sarmento R, Sato R, Savina P, Schäfer CM, Scherini V, Schieler H, Schimassek M, Schimp M, Schmidt D, Scholten O, Schoorlemmer H, Schovánek P, Schröder FG, Schulte J, Schulz T, Sciutto SJ, Scornavacche M, Segreto A, Sehgal S, Shivashankara SU, Sigl G, Silli G, Sima O, Simkova K, Simon F, Smau R, Šmída R, Sommers P, Soriano JF, Squartini R, Stadelmaier M, Stanič S, Stasielak J, Stassi P, Strähnz S, Straub M, Suomijärvi T, Supanitsky AD, Svozilikova Z, Szadkowski Z, Tairli F, Tapia A, Taricco C, Timmermans C, Tkachenko O, Tobiska P, Peixoto CJT, Tomé B, Torrès Z, Travaini A, Travnicek P, Trimarelli C, Tueros M, Unger M, Vaclavek L, Vacula M, Galicia JFV, Valore L, Varela E, Vásquez-Ramírez A, Veberič D, Ventura C, Quispe IDV, Verzi V, Vicha J, Vink J, Vorobiov S, Watanabe C, Watson AA, Weindl A, Wiencke L, Wilczyński H, Wittkowski D, Wundheiler B, Yue B, Yushkov A, Zapparrata O, Zas E, Zavrtanik D, and Zavrtanik M

Abstract

We show, for the first time, radio measurements of the depth of shower maximum (X_{max}) of air showers induced by cosmic rays that are compared to measurements of the established fluorescence method at the same location. Using measurements at the Pierre Auger Observatory we show full compatibility between our radio and the previously published fluorescence dataset, and between a subset of air showers observed simultaneously with both radio and fluorescence techniques, a measurement setup unique to the Pierre Auger Observatory. Furthermore, we show radio X_{max} resolution as a function of energy and demonstrate the ability to make competitive high-resolution X_{max} measurements with even a sparse radio array. With this, we show that the radio technique is capable of cosmic-ray mass composition studies, both at Auger and at other experiments.

Published
2024
Full Text
View/download PDF

44. Searches for new physics below twice the electron mass with GERDA.

Author

Agostini M, Alexander A, Araujo G, Bakalyarov AM, Balata M, Barabanov I, Baudis L, Bauer C, Belogurov S, Bettini A, Bezrukov L, Biancacci V, Bossio E, Bothe V, Brugnera R, Caldwell A, Calgaro S, Cattadori C, Chernogorov A, Chiu PJ, Comellato T, D'Andrea V, Demidova EV, Marco ND, Doroshkevich E, Fomina M, Gangapshev A, Garfagnini A, Gooch C, Grabmayr P, Gurentsov V, Gusev K, Hakenmüller J, Hemmer S, Hofmann W, Huang J, Hult M, Inzhechik LV, Csáthy JJ, Jochum J, Junker M, Kazalov V, Kermaïdic Y, Khushbakht H, Kihm T, Kilgus K, Kirpichnikov IV, Klimenko A, Knöpfle KT, Kochetov O, Kornoukhov VN, Krause P, Kuzminov VV, Laubenstein M, Lindner M, Lippi I, Lubashevskiy A, Lubsandorzhiev B, Lutter G, Macolino C, Majorovits B, Maneschg W, Marshall G, Misiaszek M, Morella M, Müller Y, Nemchenok I, Neuberger M, Pandola L, Pelczar K, Pertoldi L, Piseri P, Pullia A, Ransom C, Rauscher L, Redchuk M, Riboldi S, Rumyantseva N, Sada C, Sailer S, Salamida F, Schönert S, Schreiner J, Schütz AK, Schulz O, Schwarz M, Schwingenheuer B, Selivanenko O, Shevchik E, Shirchenko M, Shtembari L, Simgen H, Smolnikov A, Stukov D, Sullivan S, Vasenko AA, Veresnikova A, Vignoli C, Sturm KV, Wester T, Wiesinger C, Wojcik M, Yanovich E, Zatschler B, Zhitnikov I, Zhukov SV, Zinatulina D, Zschocke A, Zuber K, and Zuzel G

Abstract

A search for full energy depositions from bosonic keV-scale dark matter candidates of masses between 65 and 1021 keV has been performed with data collected during Phase II of the GERmanium Detector Array (Gerda) experiment. Our analysis includes direct dark matter absorption as well as dark Compton scattering. With a total exposure of 105.5 kg years, no evidence for a signal above the background has been observed. The resulting exclusion limits deduced with either Bayesian or Frequentist statistics are the most stringent direct constraints in the major part of the 140-1021 keV mass range. As an example, at a mass of 150 keV the dimensionless coupling of dark photons and axion-like particles to electrons has been constrained to α ' / α < 8.7 × 10 - 24 and g ae < 3.3 × 10 - 12 at 90% credible interval (CI), respectively. Additionally, a search for peak-like signals from beyond the Standard Model decays of nucleons and electrons is performed. We find for the inclusive decay of a single neutron in 76 Ge a lower lifetime limit of τ n > 1.5 × 10 24 years and for a proton τ p > 1.3 × 10 24 years at 90% CI. For the electron decay e - → ν e γ a lower limit of τ e > 5.4 × 10 25 years at 90% CI has been determined., Supplementary Information: The online version contains supplementary material available at 10.1140/epjc/s10052-024-13020-0., (© The Author(s) 2024.)

Published
2024
Full Text
View/download PDF

45. Optimal Operation of Cryogenic Calorimeters Through Deep Reinforcement Learning.

Author

Angloher G, Banik S, Benato G, Bento A, Bertolini A, Breier R, Bucci C, Burkhart J, Canonica L, D'Addabbo A, Di Lorenzo S, Einfalt L, Erb A, V Feilitzsch F, Fichtinger S, Fuchs D, Garai A, Ghete VM, Gorla P, Guillaumon PV, Gupta S, Hauff D, Ješkovský M, Jochum J, Kaznacheeva M, Kinast A, Kuckuk S, Kluck H, Kraus H, Langenkämper A, Mancuso M, Marini L, Mauri B, Meyer L, Mokina V, Niedermayer K, Olmi M, Ortmann T, Pagliarone C, Pattavina L, Petricca F, Potzel W, Povinec P, Pröbst F, Pucci F, Reindl F, Rothe J, Schäffner K, Schieck J, Schönert S, Schwertner C, Stahlberg M, Stodolsky L, Strandhagen C, Strauss R, Usherov I, Wagner F, Wagner V, Willers M, Zema V, Heitzinger C, and Waltenberger W

Abstract

Cryogenic phonon detectors with transition-edge sensors achieve the best sensitivity to sub-GeV/c 2 dark matter interactions with nuclei in current direct detection experiments. In such devices, the temperature of the thermometer and the bias current in its readout circuit need careful optimization to achieve optimal detector performance. This task is not trivial and is typically done manually by an expert. In our work, we automated the procedure with reinforcement learning in two settings. First, we trained on a simulation of the response of three Cryogenic Rare Event Search with Superconducting Thermometers (CRESST) detectors used as a virtual reinforcement learning environment. Second, we trained live on the same detectors operated in the CRESST underground setup. In both cases, we were able to optimize a standard detector as fast and with comparable results as human experts. Our method enables the tuning of large-scale cryogenic detector setups with minimal manual interventions., Competing Interests: Competing interestsOn behalf of all authors, the corresponding author states that there is no conflict of interest. The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request., (© The Author(s) 2024.)

Published
2024
Full Text
View/download PDF

46. The XENONnT dark matter experiment.

Author

Aprile E, Aalbers J, Abe K, Ahmed Maouloud S, Althueser L, Andrieu B, Angelino E, Angevaare JR, Antochi VC, Antón Martin D, Arneodo F, Balata M, Baudis L, Baxter AL, Bazyk M, Bellagamba L, Biondi R, Bismark A, Brookes EJ, Brown A, Bruenner S, Bruno G, Budnik R, Bui TK, Cai C, Cardoso JMR, Cassese F, Chiarini A, Cichon D, Cimental Chavez AP, Colijn AP, Conrad J, Corrieri R, Cuenca-García JJ, Cussonneau JP, Dadoun O, D'Andrea V, Decowski MP, De Fazio B, Gangi PD, Diglio S, Disdier JM, Douillet D, Eitel K, Elykov A, Farrell S, Ferella AD, Ferrari C, Fischer H, Flierman M, Form S, Front D, Fulgione W, Fuselli C, Gaemers P, Gaior R, Rosso AG, Galloway M, Gao F, Gardner R, Garroum N, Glade-Beucke R, Grandi L, Grigat J, Guan H, Guerzoni M, Guida M, Hammann R, Higuera A, Hils C, Hoetzsch L, Hood NF, Howlett J, Huhmann C, Iacovacci M, Iaquaniello G, Iven L, Itow Y, Jakob J, Joerg F, Joy A, Kara M, Kavrigin P, Kazama S, Kobayashi M, Koltman G, Kopec A, Kuger F, Landsman H, Lang RF, Levinson L, Li I, Li S, Liang S, Lindemann S, Lindner M, Liu K, Loizeau J, Lombardi F, Long J, Lopes JAM, Ma Y, Macolino C, Mahlstedt J, Mancuso A, Manenti L, Marignetti F, Marrodán Undagoitia T, Martella P, Martens K, Masbou J, Masson D, Masson E, Mastroianni S, Mele E, Messina M, Michinelli R, Miuchi K, Molinario A, Moriyama S, Morå K, Mosbacher Y, Murra M, Müller J, Ni K, Nisi S, Oberlack U, Orlandi D, Othegraven R, Paetsch B, Palacio J, Parlati S, Paschos P, Pellegrini Q, Peres R, Peters C, Pienaar J, Pierre M, Plante G, Pollmann TR, Qi J, Qin J, García DR, Rynge M, Shi J, Singh R, Sanchez L, Santos JMFD, Sarnoff I, Sartorelli G, Schreiner J, Schulte D, Schulte P, Schulze Eißing H, Schumann M, Scotto Lavina L, Selvi M, Semeria F, Shagin P, Shi S, Shockley E, Silva M, Simgen H, Stephen J, Stern M, Stillwell BK, Takeda A, Tan PL, Tatananni D, Terliuk A, Thers D, Toschi F, Trinchero G, Tunnell C, Tönnies F, Valerius K, Volta G, Weinheimer C, Weiss M, Wenz D, Westermann J, Wittweg C, Wolf T, Wu VHS, Xing Y, Xu D, Xu Z, Yamashita M, Yang L, Ye J, Yuan L, Zavattini G, Zhong M, and Zhu T

Abstract

The multi-staged XENON program at INFN Laboratori Nazionali del Gran Sasso aims to detect dark matter with two-phase liquid xenon time projection chambers of increasing size and sensitivity. The XENONnT experiment is the latest detector in the program, planned to be an upgrade of its predecessor XENON1T. It features an active target of 5.9 tonnes of cryogenic liquid xenon (8.5 tonnes total mass in cryostat). The experiment is expected to extend the sensitivity to WIMP dark matter by more than an order of magnitude compared to XENON1T, thanks to the larger active mass and the significantly reduced background, improved by novel systems such as a radon removal plant and a neutron veto. This article describes the XENONnT experiment and its sub-systems in detail and reports on the detector performance during the first science run., (© The Author(s) 2024.)

Published
2024
Full Text
View/download PDF

47. Measurement of the 2νββ Decay Half-Life of ^{82}Se with the Global CUPID-0 Background Model.

Author

Azzolini O, Beeman JW, Bellini F, Beretta M, Biassoni M, Brofferio C, Bucci C, Capelli S, Caracciolo V, Cardani L, Carniti P, Casali N, Celi E, Chiesa D, Clemenza M, Colantoni I, Cremonesi O, Cruciani A, D'Addabbo A, Dafinei I, Di Domizio S, Dompè V, Fantini G, Ferroni F, Gironi L, Giuliani A, Gorla P, Gotti C, Keppel G, Kotila J, Martinez M, Nagorny SS, Nastasi M, Nisi S, Nones C, Orlandi D, Pagnanini L, Pallavicini M, Pattavina L, Pavan M, Pessina G, Pettinacci V, Pirro S, Pozzi S, Previtali E, Puiu A, Ressa A, Rusconi C, Schäffner K, Tomei C, Vignati M, and Zolotarova AS

Abstract

We report on the results obtained with the global CUPID-0 background model, which combines the data collected in the two measurement campaigns for a total exposure of 8.82  kg×yr of ^{82}Se. We identify with improved precision the background sources within the 3 MeV energy region, where neutrinoless double β decay of ^{82}Se and ^{100}Mo is expected, making more solid the foundations for the background budget of the next-generation CUPID experiment. Relying on the excellent data reconstruction, we measure the two-neutrino double β-decay half-life of ^{82}Se with unprecedented accuracy: T&#95;{1/2}^{2ν}=[8.69±0.05(stat)&#95;{-0.06}^{+0.09}(syst)]×10^{19}  yr.

Published
2023
Full Text
View/download PDF

48. Glitches in Rotating Supersolids.

Author

Poli E, Bland T, White SJM, Mark MJ, Ferlaino F, Trabucco S, and Mannarelli M

Abstract

Glitches, spin-up events in neutron stars, are of prime interest, as they reveal properties of nuclear matter at subnuclear densities. We numerically investigate the glitch mechanism due to vortex unpinning using analogies between neutron stars and dipolar supersolids. We explore the vortex and crystal dynamics during a glitch and its dependence on the supersolid quality, providing a tool to study glitches from different radial depths of a neutron star. Benchmarking our theory against neutron-star observations, our work will open a new avenue for the quantum simulation of stellar objects from Earth.

Published
2023
Full Text
View/download PDF

49. Second Data Release from the European Pulsar Timing Array: Challenging the Ultralight Dark Matter Paradigm.

Author

Smarra C, Goncharov B, Barausse E, Antoniadis J, Babak S, Nielsen AB, Bassa CG, Berthereau A, Bonetti M, Bortolas E, Brook PR, Burgay M, Caballero RN, Chalumeau A, Champion DJ, Chanlaridis S, Chen S, Cognard I, Desvignes G, Falxa M, Ferdman RD, Franchini A, Gair JR, Graikou E, Grießmeier JM, Guillemot L, Guo YJ, Hu H, Iraci F, Izquierdo-Villalba D, Jang J, Jawor J, Janssen GH, Jessner A, Karuppusamy R, Keane EF, Keith MJ, Kramer M, Krishnakumar MA, Lackeos K, Lee KJ, Liu K, Liu Y, Lyne AG, McKee JW, Main RA, Mickaliger MB, Niţu IC, Parthasarathy A, Perera BBP, Perrodin D, Petiteau A, Porayko NK, Possenti A, Leclere HQ, Samajdar A, Sanidas SA, Sesana A, Shaifullah G, Speri L, Spiewak R, Stappers BW, Susarla SC, Theureau G, Tiburzi C, van der Wateren E, Vecchio A, Krishnan VV, Wang J, Wang L, and Wu Z

Abstract

Pulsar Timing Array experiments probe the presence of possible scalar or pseudoscalar ultralight dark matter particles through decade-long timing of an ensemble of galactic millisecond radio pulsars. With the second data release of the European Pulsar Timing Array, we focus on the most robust scenario, in which dark matter interacts only gravitationally with ordinary baryonic matter. Our results show that ultralight particles with masses 10^{-24.0}  eV≲m≲10^{-23.3}  eV cannot constitute 100% of the measured local dark matter density, but can have at most local density ρ≲0.3  GeV/cm^{3}.

Published
2023
Full Text
View/download PDF

50. Measurement of the 2νββ Decay Rate and Spectral Shape of ^{100}Mo from the CUPID-Mo Experiment.

Author

Augier C, Barabash AS, Bellini F, Benato G, Beretta M, Bergé L, Billard J, Borovlev YA, Cardani L, Casali N, Cazes A, Celi E, Chapellier M, Chiesa D, Dafinei I, Danevich FA, De Jesus M, Dixon T, Dumoulin L, Eitel K, Ferri F, Fujikawa BK, Gascon J, Gironi L, Giuliani A, Grigorieva VD, Gros M, Helis DL, Huang HZ, Huang R, Imbert L, Johnston J, Juillard A, Khalife H, Kleifges M, Kobychev VV, Kolomensky YG, Konovalov SI, Kotila J, Loaiza P, Ma L, Makarov EP, de Marcillac P, Mariam R, Marini L, Marnieros S, Navick XF, Nones C, Norman EB, Olivieri E, Ouellet JL, Pagnanini L, Pattavina L, Paul B, Pavan M, Peng H, Pessina G, Pirro S, Poda DV, Polischuk OG, Pozzi S, Previtali E, Redon T, Rojas A, Rozov S, Sanglard V, Scarpaci JA, Schmidt B, Shen Y, Shlegel VN, Šimkovic F, Singh V, Tomei C, Tretyak VI, Umatov VI, Vagneron L, Velázquez M, Ware B, Welliver B, Winslow L, Xue M, Yakushev E, Zarytskyy M, and Zolotarova AS

Abstract

Neutrinoless double beta decay (0νββ) is a yet unobserved nuclear process that would demonstrate Lepton number violation, a clear evidence of beyond standard model physics. The process two neutrino double beta decay (2νββ) is allowed by the standard model and has been measured in numerous experiments. In this Letter, we report a measurement of 2νββ decay half-life of ^{100}Mo to the ground state of ^{100}Ru of [7.07±0.02(stat)±0.11(syst)]×10^{18}  yr by the CUPID-Mo experiment. With a relative precision of ±1.6% this is the most precise measurement to date of a 2νββ decay rate in ^{100}Mo. In addition, we constrain higher-order corrections to the spectral shape, which provides complementary nuclear structure information. We report a novel measurement of the shape factor ξ&#95;{3,1}=0.45±0.03(stat)±0.05(syst) based on a constraint on the ratio of higher-order terms from theory, which can be reliably calculated. This is compared to theoretical predictions for different nuclear models. We also extract the first value for the effective axial vector coupling constant obtained from a spectral shape study of 2νββ decay.

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results