4 research outputs found
Production, characterization and operation of 76 Ge enriched BEGe detectors in G ERDA
- Author
- 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)
- 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 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)
- Demidova E. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia)
- Domula A.(Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany)
- D’Andrea V.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy)
- Egorov V.(Joint Institute for Nuclear Research, Dubna, Russia)
- Falkenstein R.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany)
- 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)
- 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 and Gran Sasso Science Institute, Assergi, Italy)
- Janicskó Csáthy J.(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)
- Misiaszek M.(Institute of Physics, Jagiellonian University, Cracow, Poland)
- Nemchenok I.(Joint Institute for Nuclear Research, Dubna, Russia)
- Nisi S.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy)
- O’Shaughnessy C.(Max-Planck-Institut für Physik, Munich, Germany)
- Palioselitis D.(Max-Planck-Institut für Physik, Munich, Germany)
- Pandola L.(INFN Laboratori Nazionali del Sud, Catania, 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)
- 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)
- Schreiner J.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany)
- Schulz O.(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, Munich, Germany)
- Schütz A. -K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, 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)
- 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)
- 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)
- Zuzel G.(Institute of Physics, Jagiellonian University, Cracow, Poland)
- Publication venue
- Publication date
- Field of study
The GERmanium Detector Array ( Gerda ) at the Gran Sasso Underground Laboratory (LNGS) searches for the neutrinoless double beta decay ( 0νββ ) of 76 Ge. Germanium detectors made of material with an enriched 76 Ge fraction act simultaneously as sources and detectors for this decay. During Phase I of theexperiment mainly refurbished semi-coaxial Ge detectors from former experiments were used. For the upcoming Phase II, 30 new 76 Ge enriched detectors of broad energy germanium (BEGe)-type were produced. A subgroup of these detectors has already been deployed in Gerda during Phase I. The present paper reviews the complete production chain of these BEGe detectors including isotopic enrichment, purification, crystal growth and diode production. The efforts in optimizing the mass yield and in minimizing the exposure of the 76 Ge enriched germanium to cosmic radiation during processing are described. Furthermore, characterization measurements in vacuum cryostats of the first subgroup of seven BEGe detectors and their long-term behavior in liquid argon are discussed. The detector performance fulfills the requirements needed for the physics goals of Gerda Phase II
Improvement of the energy resolution via an optimized digital signal processing in GERDA Phase I
- Author
- 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 Center “Kurchatov Institute”, Moscow, Russia)
- Balata M.(INFN Laboratori Nazionali del Gran Sasso, LNGS, and Gran Sasso Science Institute, GSSI, 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 Center “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, Kraków, 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)
- Demidova E. V.(Institute for Theoretical and Experimental Physics, Moscow, Russia)
- 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)
- D’Andrea V.(INFN Laboratori Nazionali del Gran Sasso, LNGS, and Gran Sasso Science Institute, GSSI, Assergi, Italy)
- 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, Kraków, 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)
- Janicskó Csáthy J.(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, LNGS, and Gran Sasso Science Institute, GSSI, 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, LNGS, and Gran Sasso Science Institute, GSSI, Assergi, Italy)
- Lazzaro A.(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany)
- Lebedev V. I.(National Research Center “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)
- LNGS Assergi, 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, LNGS, and Gran Sasso Science Institute, GSSI, 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, Kraków, 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, Kraków, Poland)
- Pandola L.(INFN Laboratori Nazionali del Sud, Catania, Italy)
- Pelczar K.(Institute of Physics, Jagiellonian University, Kraków, 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)
- Schreiner J.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany)
- Schulz O.(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, Munich, Germany)
- Schütz A.-K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, 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)
- Vacri A. di(INFN Laboratori Nazionali del Gran Sasso, LNGS, and Gran Sasso Science Institute, GSSI, Assergi, 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, Kraków, Poland)
- Yanovich E.(Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia)
- Zavarise P.(INFN Laboratori Nazionali del Gran Sasso, LNGS, and Gran Sasso Science Institute, GSSI, Assergi, Italy)
- Zhitnikov I.(Joint Institute for Nuclear Research, Dubna, Russia)
- Zhukov S. V.(National Research Center “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, Kraków, Poland)
- Publication venue
- Publication date
- Field of study
An optimized digital shaping filter has been developed for the Gerda experiment which searches for neutrinoless double beta decay in 76 Ge. The Gerda Phase I energy calibration data have been reprocessed and an average improvement of 0.3 keV in energy resolution (FWHM) corresponding to 10 % at the Q value for 0νββ decay in 76 Ge is obtained. This is possible thanks to the enhanced low-frequency noise rejection of this Zero Area Cusp (ZAC) signal shaping filter
Results on ββ decay with emission of two neutrinos or Majorons in 76 Ge from GERDA Phase I
- Author
- 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)
- Csáthy J. Janicskó(Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany)
- 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)
- D’Andrea V.(INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi, Italy)
- 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)
- 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)
- LNGS Assergi, 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)
- Schreiner J.(Max-Planck-Institut für Kernphysik, Heidelberg, Germany)
- Schulz O.(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, Munich, Germany)
- Schütz A.-K.(Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, 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)
- Zuzel G.(Institute of Physics, Jagiellonian University, Cracow, Poland)
- Publication venue
- Publication date
- Field of study
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
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)
- Csáthy J. Janicskó(Physik Department and Excellence Cluster Universe, Technische Universität München, 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)
- 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)
- Machado A. A.(Max Planck Institut für Kernphysik, Heidelberg, Germany)
- Macolino C.(INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy)
- 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)
- Publication venue
- Publication date
- Field of study
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