Journal article

Searching Neutrinoless Double Beta Decay with Gerda Phase II

  • Agostini, M. INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy
  • 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
  • Baudis, L. Physik Institut der Universität Zürich, Zurich, Switzerland
  • Bauer, C. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Bellotti, E. INFN Milano Bicocca, Milan, Italy
  • Belogurov, S. Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
  • Bettini, A. INFN 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, Germany
  • Brudanin, V. Joint Institute for Nuclear Research, Dubna, Russia
  • Brugnera, R. INFN Padova, Padua, Italy
  • Caldwell, A. Max-Planck-Institut für Physik, Munich, Germany
  • Cattadori, C. INFN Milano Bicocca, Milan, Italy
  • Chernogorov, A. Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
  • Comellato, T. Physik Department and Excellence Cluster Universe, Technische Universität München, Germany
  • 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, NRC “Kurchatov Institute”, Moscow, Russia
  • Di Marco, N. 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
  • Gangapshev, A. Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
  • Garfagnini, A. INFN Padova, Padua, Italy
  • Giordano, M. INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell’Aquila, L’Aquila, 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. Physik Department and Excellence Cluster Universe, Technische Universität München, Germany
  • Hahne, C. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
  • Hakenmüller, J. 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. INFN Padova, Padua, Italy
  • Hiller, R. Physik Institut der Universität Zürich, Zurich, Switzerland
  • Hofmann, W. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Holl, P. Max-Planck-Institut für Physik, Munich, Germany
  • Hult, M. European Commission, JRC-Geel, 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 and Gran Sasso Science Institute, Assergi, Italy
  • Csáthy, J. Janicskó Physik Department and Excellence Cluster Universe, Technische Universität München, 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
  • Kermaidic, Y. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Kihm, T. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Kirpichnikov, I.V. Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
  • Kirsch, A. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Kish, A. Physik Institut der Universität Zürich, Zurich, Switzerland
  • Klimenko, A. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Kneißl, R. Max-Planck-Institut für Physik, Munich, Germany
  • Knöpfle, K.T. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Kochetov, O. Joint Institute for Nuclear Research, Dubna, Russia
  • Kornoukhov, V.N. Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, 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, Germany
  • Lindner, M. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Lippi, I. INFN Padova, Padua, Italy
  • 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. European Commission, JRC-Geel, 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
  • Marissens, G. European Commission, JRC-Geel, Geel, Belgium
  • Miloradovic, M. Physik Institut der Universität Zürich, Zurich, Switzerland
  • Mingazheva, R. Physik Institut der Universität Zürich, Zurich, Switzerland
  • 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
  • Nisi, S. INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy
  • Panas, K. Institute of Physics, Jagiellonian University, Cracow, Poland
  • Pandola, L. INFN Laboratori Nazionali del Sud, Catania, Italy
  • Pelczar, K. INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy
  • Pullia, A. Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy
  • Ransom, C. Physik Institut der Universität Zürich, Zurich, Switzerland
  • Reissfelder, M. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Riboldi, S. Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy
  • Rumyantseva, N. National Research Centre “Kurchatov Institute”, Moscow, Russia
  • Sada, C. INFN Padova, Padua, Italy
  • Sala, E. Max-Planck-Institut für Physik, Munich, Germany
  • Salamida, F. INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell’Aquila, L’Aquila, Italy
  • Schmitt, C. Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
  • Schneider, B. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
  • Schreiner, J. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Schulz, O. Max-Planck-Institut für Physik, Munich, Germany
  • Schweisshelm, B. Max-Planck-Institut für Physik, Munich, Germany
  • Schwingenheuer, B. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Schönert, S. Physik Department and Excellence Cluster Universe, Technische Universität München, Germany
  • Schütz, A-K. Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
  • Seitz, H. Max-Planck-Institut für Physik, Munich, 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
  • Simgen, H. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Smolnikov, A. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Stanco, L. INFN Padova, Padua, Italy
  • Vanhoefer, L. Max-Planck-Institut für Physik, Munich, Germany
  • Vasenko, A.A. 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
  • von Sturm, K. INFN Padova, Padua, Italy
  • Wagner, V. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Wegmann, A. Max-Planck-Institut für Kernphysik, Heidelberg, Germany
  • Wester, T. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
  • Wiesinger, C. Physik Department and Excellence Cluster Universe, Technische Universität München, Germany
  • Wojcik, M. Institute of Physics, Jagiellonian University, Cracow, Poland
  • Yanovich, E. Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
  • 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
  • Zschocke, A. Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
  • Zsigmond, A.J. Max-Planck-Institut für Physik, Munich, Germany
  • Zuber, K. Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
  • Zuzel, G. Institute of Physics, Jagiellonian University, Cracow, Poland
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  • 2018-5
Published in:
  • International Journal of Modern Physics: Conference Series. - World Scientific Pub Co Pte Lt. - 2018, vol. 46, p. 1860040
English An observation of neutrinoless double beta ([Formula: see text]) decay would allow to shed light onto the nature of neutrinos. Gerda (GERmanium Detector Array) aims to discover this process in a background-free search using [Formula: see text]Ge. The experiment is located at the Laboratori Nazionali del Gran Sasso (LNGS) of the Istituto Nazionale di Fisica Nucleare (INFN) in Italy. Bare, isotopically enriched, high purity germanium detectors are operated in liquid argon. Gerda follows a staged approach. In Phase II 35.6 kg of enriched germanium detectors are operated since December 2015. The application of active background rejection methods, such as a liquid argon scintillation light read-out and pulse shape discrimination of germanium detector signals, allows to reduce the background index to the intended level of [Formula: see text] cts/(keV⋅kg⋅yr). No evidence for the [Formula: see text] decay has been found in 23.2 kg⋅yr of Phase II data, and together with data from Phase I the up-to-date most stringent half-life limit for this process in [Formula: see text]Ge has been established, at a median sensitivity of 5.8⋅10[Formula: see text][Formula: see text]yr the 90[Formula: see text]% C.L. lower limit is 8.0⋅10[Formula: see text][Formula: see text]yr.
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  • English
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https://sonar.ch/global/documents/121330
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