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

Autor: Agostini M; Department of Physics and Astronomy, University College London, London, UK., Alexander A; Department of Physics and Astronomy, University College London, London, UK., Araujo G; Physik-Institut, Universität Zürich, Zürich, Switzerland., Bakalyarov AM; National Research Centre 'Kurchatov Institute', Moscow, Russia., Balata M; INFN Laboratori Nazionali del Gran Sasso, Assergi, Italy., Barabanov I; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Baudis L; Physik-Institut, Universität Zürich, Zürich, Switzerland., Bauer C; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Belogurov S; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.; Institute for Theoretical and Experimental Physics, NRC 'Kurchatov Institute', Moscow, Russia.; NRNU MEPhI, Moscow, Russia., Bettini A; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Bezrukov L; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Biancacci V; INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell'Aquila, L'Aquila, Italy., Bossio E; Physik Department, Technische Universität München, Munich, Germany., Bothe V; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Brugnera R; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Caldwell A; Max-Planck-Institut für Physik, Munich, Germany., Calgaro S; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Cattadori C; INFN Milano Bicocca, Milan, Italy., Chernogorov A; Institute for Theoretical and Experimental Physics, NRC 'Kurchatov Institute', Moscow, Russia.; National Research Centre 'Kurchatov Institute', Moscow, Russia., Chiu PJ; Physik-Institut, Universität Zürich, Zürich, Switzerland., Comellato T; Physik Department, Technische Universität München, Munich, Germany., D'Andrea V; INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell'Aquila, L'Aquila, Italy., Demidova EV; Institute for Theoretical and Experimental Physics, NRC 'Kurchatov Institute', Moscow, Russia., Marco ND; INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy., Doroshkevich E; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Fomina M; Joint Institute for Nuclear Research, Dubna, Russia., Gangapshev A; Max-Planck-Institut für Kernphysik, Heidelberg, Germany.; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Garfagnini A; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Gooch C; Max-Planck-Institut für Physik, Munich, Germany., 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.; National Research Centre 'Kurchatov Institute', Moscow, Russia.; Physik Department, Technische Universität München, Munich, Germany., Hakenmüller J; Max-Planck-Institut für Kernphysik, Heidelberg, Germany.; Present Address: Duke University, Durham, NC USA., Hemmer S; INFN Padova, Padua, Italy., Hofmann W; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Huang J; Physik-Institut, Universität Zürich, Zürich, Switzerland., Hult M; European Commission, JRC-Geel, Geel, Belgium., Inzhechik LV; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.; Moscow Inst. of Physics and Technology, Dolgoprudny, Russia., Csáthy JJ; Physik Department, Technische Universität München, Munich, Germany.; Present Address: Semilab Zrt, Budapest, Hungary., Jochum J; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany., Junker M; INFN Laboratori Nazionali del Gran Sasso, Assergi, Italy., Kazalov V; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Kermaïdic Y; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Khushbakht H; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany., Kihm T; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Kilgus K; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany., Kirpichnikov IV; Institute for Theoretical and Experimental Physics, NRC 'Kurchatov Institute', Moscow, Russia., Klimenko A; Joint Institute for Nuclear Research, Dubna, Russia.; Max-Planck-Institut für Kernphysik, Heidelberg, Germany.; Dubna State University, Dubna, Russia., Knöpfle KT; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Kochetov O; Joint Institute for Nuclear Research, Dubna, Russia., Kornoukhov VN; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia.; NRNU MEPhI, Moscow, Russia., Krause P; Physik Department, Technische Universität München, Munich, Germany., Kuzminov VV; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Laubenstein M; INFN Laboratori Nazionali del Gran Sasso, Assergi, Italy., 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; European Commission, JRC-Geel, Geel, Belgium., Macolino C; INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell'Aquila, L'Aquila, Italy., Majorovits B; Max-Planck-Institut für Physik, Munich, Germany., Maneschg W; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Marshall G; Department of Physics and Astronomy, University College London, London, UK., Misiaszek M; Institute of Physics, Jagiellonian University, Cracow, Poland., Morella M; INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy., Müller Y; Physik-Institut, Universität Zürich, Zürich, Switzerland., Nemchenok I; Joint Institute for Nuclear Research, Dubna, Russia.; Dubna State University, Dubna, Russia., Neuberger M; Physik Department, Technische Universität München, Munich, Germany., Pandola L; INFN Laboratori Nazionali del Sud, Catania, Italy., Pelczar K; European Commission, JRC-Geel, Geel, Belgium., Pertoldi L; Physik Department, Technische Universität München, Munich, Germany.; INFN Padova, Padua, Italy., Piseri P; Dipartimento di Fisica, Università degli Studi di Milano and INFN Milano, Milan, Italy., Pullia A; Dipartimento di Fisica, Università degli Studi di Milano and INFN Milano, Milan, Italy., Ransom C; Physik-Institut, Universität Zürich, Zürich, Switzerland., Rauscher L; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany., Redchuk M; INFN Padova, Padua, Italy., Riboldi S; Dipartimento di Fisica, Università degli Studi di Milano and INFN Milano, Milan, Italy., Rumyantseva N; Joint Institute for Nuclear Research, Dubna, Russia.; National Research Centre 'Kurchatov Institute', Moscow, Russia., Sada C; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Sailer S; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Salamida F; INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell'Aquila, L'Aquila, Italy., Schönert S; Physik Department, Technische Universität München, Munich, Germany., Schreiner J; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Schütz AK; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany.; Present Address: Nuclear Science Division, Berkeley, USA., Schulz O; Max-Planck-Institut für Physik, Munich, Germany., Schwarz M; Physik Department, Technische Universität München, 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., Shevchik E; Joint Institute for Nuclear Research, Dubna, Russia., Shirchenko M; Joint Institute for Nuclear Research, Dubna, Russia., Shtembari L; Max-Planck-Institut für Physik, Munich, Germany., Simgen H; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Smolnikov A; Joint Institute for Nuclear Research, Dubna, Russia.; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Stukov D; National Research Centre 'Kurchatov Institute', Moscow, Russia., Sullivan S; Max-Planck-Institut für Kernphysik, Heidelberg, Germany., Vasenko AA; Institute for Theoretical and Experimental Physics, NRC 'Kurchatov Institute', Moscow, Russia., Veresnikova A; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Vignoli C; INFN Laboratori Nazionali del Gran Sasso, Assergi, Italy., Sturm KV; Dipartimento di Fisica e Astronomia, Università degli Studi di Padova, Padua, Italy.; INFN Padova, Padua, Italy., Wester T; Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany., Wiesinger C; Physik Department, Technische Universität München, Munich, Germany., Wojcik M; Institute of Physics, Jagiellonian University, Cracow, Poland., Yanovich E; Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia., Zatschler B; Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany., Zhitnikov I; Joint Institute for Nuclear Research, Dubna, Russia., Zhukov SV; National Research Centre 'Kurchatov Institute', Moscow, Russia., Zinatulina D; Joint Institute for Nuclear Research, Dubna, Russia., Zschocke A; Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany., Zuber K; Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany., Zuzel G; Institute of Physics, Jagiellonian University, Cracow, Poland.
Jazyk: angličtina
Zdroj: The European physical journal. C, Particles and fields [Eur Phys J C Part Fields] 2024; Vol. 84 (9), pp. 940. Date of Electronic Publication: 2024 Sep 18.
DOI: 10.1140/epjc/s10052-024-13020-0
Abstrakt: 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.)
Databáze: MEDLINE
Externí odkaz: