1
|
Agostini M, Bakalyarov AM, Andreotti E, Balata M, Barabanov I, Baudis L, Barros N, Bauer C, Bellotti E, Belogurov S, Benato G, Bettini A, Bezrukov L, Bode T, Borowicz D, Brudanin V, Brugnera R, Budjáš D, Caldwell A, Cattadori C, Chernogorov A, D’Andrea V, Demidova EV, Di Marco N, Domula A, Doroshkevich E, Egorov V, Falkenstein R, Freund K, Gangapshev A, Garfagnini A, Gooch C, Grabmayr P, Gurentsov V, Gusev K, Hakenmüller J, Hegai A, Heisel M, Hemmer S, Hiller R, Hofmann W, Hult M, Inzhechik LV, Csáthy JJ, Jochum J, Junker M, Kazalov V, Kermaïdic Y, Kihm T, Kirpichnikov IV, Kirsch A, Kish A, Klimenko A, Kneißl R, Knöpfle KT, Kochetov O, Kornoukhov VN, Kuzminov VV, Laubenstein M, Lazzaro A, Lehnert B, Liao Y, Lindner M, Lippi I, Lubashevskiy A, Lubsandorzhiev B, Lutter G, Macolino C, Majorovits B, Maneschg W, Marissens G, Miloradovic M, Mingazheva R, Misiaszek M, Moseev P, Nemchenok I, Panas K, Pandola L, Pelczar K, Pullia A, Ransom C, Riboldi S, Rumyantseva N, Sada C, Salamida F, Salathe M, Schmitt C, Schneider B, Schönert S, Schütz AK, Schulz O, Schwingenheuer B, Selivanenko O, Shevchik E, Shirchenko M, Simgen H, Smolnikov A, Stanco L, Vanhoefer L, Vasenko AA, Veresnikova A, von Sturm K, Wagner V, Wegmann A, Wester T, Wiesinger C, Wojcik M, Yanovich E, Zhitnikov I, Zhukov SV, Zinatulina D, Zsigmond AJ, Zuber K, Zuzel G. Characterization of 30 76 Ge enriched Broad Energy Ge detectors for GERDA Phase II. Eur Phys J C Part Fields 2019; 79:978. [PMID: 31885491 PMCID: PMC6892349 DOI: 10.1140/epjc/s10052-019-7353-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 09/28/2019] [Indexed: 05/28/2023]
Abstract
The GERmanium Detector Array (Gerda) is a low background experiment located at the Laboratori Nazionali del Gran Sasso in Italy, which searches for neutrinoless double-beta decay of 76 Ge into 76 Se+2e - . Gerda has been conceived in two phases. Phase II, which started in December 2015, features several novelties including 30 new 76Ge enriched detectors. These were manufactured according to the Broad Energy Germanium (BEGe) detector design that has a better background discrimination capability and energy resolution compared to formerly widely-used types. Prior to their installation, the new BEGe detectors were mounted in vacuum cryostats and characterized in detail in the Hades underground laboratory in Belgium. This paper describes the properties and the overall performance of these detectors during operation in vacuum. The characterization campaign provided not only direct input for Gerda Phase II data collection and analyses, but also allowed to study detector phenomena, detector correlations as well as to test the accuracy of pulse shape simulation codes.
Collapse
Affiliation(s)
- M. Agostini
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | | | | | - M. Balata
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | - I. Barabanov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - L. Baudis
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - N. Barros
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - C. Bauer
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - E. Bellotti
- Dipartimento di Fisica, Università Milano Bicocca, Milan, Italy
- INFN Milano Bicocca, Milan, Italy
| | - S. Belogurov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - G. Benato
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - A. Bettini
- Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy
- INFN Padova, Padua, Italy
| | - L. Bezrukov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - T. Bode
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - D. Borowicz
- Joint Institute for Nuclear Research, Dubna, Russia
| | - V. Brudanin
- Joint Institute for Nuclear Research, Dubna, Russia
| | - R. Brugnera
- Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy
- INFN Padova, Padua, Italy
| | - D. Budjáš
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - A. Caldwell
- Max-Planck-Institut für Physik, Munich, Germany
| | | | - A. Chernogorov
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - V. D’Andrea
- INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell’Aquila, L’Aquila, Italy
| | - E. V. Demidova
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - N. Di Marco
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | - A. Domula
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - E. Doroshkevich
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - V. Egorov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - R. Falkenstein
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - K. Freund
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - A. Gangapshev
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - A. Garfagnini
- Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy
- INFN Padova, Padua, Italy
| | - C. Gooch
- Max-Planck-Institut für Physik, Munich, Germany
| | - P. Grabmayr
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - V. Gurentsov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - K. Gusev
- Joint Institute for Nuclear Research, Dubna, Russia
- National Research Centre “Kurchatov Institute”, Moscow, Russia
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | | | - A. Hegai
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - M. Heisel
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | | | - R. Hiller
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - W. Hofmann
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - M. Hult
- European Commission, JRC-Geel, Geel, Belgium
| | - L. V. Inzhechik
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - J. Janicskó Csáthy
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - J. Jochum
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - M. Junker
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | - V. Kazalov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - Y. Kermaïdic
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - T. Kihm
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - I. V. Kirpichnikov
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - A. Kirsch
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - A. Kish
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - A. Klimenko
- Joint Institute for Nuclear Research, Dubna, Russia
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - R. Kneißl
- Max-Planck-Institut für Physik, Munich, Germany
| | - K. T. Knöpfle
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - O. Kochetov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - V. N. Kornoukhov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - V. V. Kuzminov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - M. Laubenstein
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | - A. Lazzaro
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - B. Lehnert
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - Y. Liao
- Max-Planck-Institut für Physik, Munich, Germany
| | - M. Lindner
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | | | | | - B. Lubsandorzhiev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - G. Lutter
- European Commission, JRC-Geel, Geel, Belgium
| | - C. Macolino
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | | | - W. Maneschg
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | | | - M. Miloradovic
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - R. Mingazheva
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - M. Misiaszek
- Institute of Physics, Jagiellonian University, Cracow, Poland
| | - P. Moseev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - I. Nemchenok
- Joint Institute for Nuclear Research, Dubna, Russia
| | - K. Panas
- Institute of Physics, Jagiellonian University, Cracow, Poland
| | - L. Pandola
- INFN Laboratori Nazionali del Sud, Catania, Italy
| | - K. Pelczar
- INFN Laboratori Nazionali del Gran Sasso, LNGS, Assergi, Italy
| | - A. Pullia
- Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy
| | - C. Ransom
- Physik Institut der Universität Zürich, Zurich, Switzerland
| | - S. Riboldi
- Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan, Italy
| | - N. Rumyantseva
- Joint Institute for Nuclear Research, Dubna, Russia
- National Research Centre “Kurchatov Institute”, Moscow, Russia
| | - C. Sada
- Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy
- INFN Padova, Padua, Italy
| | - F. Salamida
- INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell’Aquila, L’Aquila, Italy
| | - M. Salathe
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - C. Schmitt
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - B. Schneider
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - S. Schönert
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - A.-K. Schütz
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - O. Schulz
- Max-Planck-Institut für Physik, Munich, Germany
| | | | - O. Selivanenko
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - E. Shevchik
- Joint Institute for Nuclear Research, Dubna, Russia
| | | | - H. Simgen
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - A. Smolnikov
- Joint Institute for Nuclear Research, Dubna, Russia
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | | | | | - A. A. Vasenko
- Institute for Theoretical and Experimental Physics, NRC “Kurchatov Institute”, Moscow, Russia
| | - A. Veresnikova
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - K. von Sturm
- Dipartimento di Fisica e Astronomia dell’Università di Padova, Padua, Italy
- INFN Padova, Padua, Italy
| | - V. Wagner
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - A. Wegmann
- Max-Planck-Institut für Kernphysik, Heidelberg, Germany
| | - T. Wester
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - C. Wiesinger
- Physik Department and Excellence Cluster Universe, Technische Universität München, Munich, Germany
| | - M. Wojcik
- Institute of Physics, Jagiellonian University, Cracow, Poland
| | - E. Yanovich
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow, Russia
| | - I. Zhitnikov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - S. V. Zhukov
- National Research Centre “Kurchatov Institute”, Moscow, Russia
| | | | | | - K. Zuber
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - G. Zuzel
- Institute of Physics, Jagiellonian University, Cracow, Poland
| | | |
Collapse
|
2
|
Yu CH, Alvis S, Arnquist I, Avignone F, Barabash A, Barton C, Bertrand F, Bode T, Brudanin V, Busch M, Buuck M, Caldwell T, Chan YD, Christofferson C, Chu PH, Cuesta C, Detwiler J, Dunagan C, Efremenko Y, Ejiri H, Elliott S, Gilliss T, Giovanetti G, Green M, Gruszko J, Guinn I, Guiseppe V, Haufe C, Hehn L, Henning R, Hoppe E, Howe M, Keeter K, Kidd M, Konovalov S, Kouzes R, Lopez A, Martin R, Massarczyk R, Meijer S, Mertens S, Myslik J, Othman G, Pettus W, Poon A, Radford D, Rager J, Reine A, Rielage K, Ruof N, Shanks B, Shirchenko M, Suriano A, Tedeschi D, Varner R, Vasilyev S, Vetter K, Vorren K, White B, Wilkerson J, Wiseman C, Xu W, Yakushev E, Yumatov V, Zhitnikov I, Zhu B. The Majorana Demonstrator Status and Preliminary Results. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201817801006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Qββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.
Collapse
|
3
|
Aalseth CE, Abgrall N, Aguayo E, Alvis SI, Amman M, Arnquist IJ, Avignone FT, Back HO, Barabash AS, Barbeau PS, Barton CJ, Barton PJ, Bertrand FE, Bode T, Bos B, Boswell M, Bradley AW, Brodzinski RL, Brudanin V, Busch M, Buuck M, Caldwell AS, Caldwell TS, Chan YD, Christofferson CD, Chu PH, Collar JI, Combs DC, Cooper RJ, Cuesta C, Detwiler JA, Doe PJ, Dunmore JA, Efremenko Y, Ejiri H, Elliott SR, Fast JE, Finnerty P, Fraenkle FM, Fu Z, Fujikawa BK, Fuller E, Galindo-Uribarri A, Gehman VM, Gilliss T, Giovanetti GK, Goett J, Green MP, Gruszko J, Guinn IS, Guiseppe VE, Hallin AL, Haufe CR, Hehn L, Henning R, Hoppe EW, Hossbach TW, Howe MA, Jasinski BR, Johnson RA, Keeter KJ, Kephart JD, Kidd MF, Knecht A, Konovalov SI, Kouzes RT, LaFerriere BD, Leon J, Lesko KT, Leviner LE, Loach JC, Lopez AM, Luke PN, MacMullin J, MacMullin S, Marino MG, Martin RD, Massarczyk R, McDonald AB, Mei DM, Meijer SJ, Merriman JH, Mertens S, Miley HS, Miller ML, Myslik J, Orrell JL, O'Shaughnessy C, Othman G, Overman NR, Perumpilly G, Pettus W, Phillips DG, Poon AWP, Pushkin K, Radford DC, Rager J, Reeves JH, Reine AL, Rielage K, Robertson RGH, Ronquest MC, Ruof NW, Schubert AG, Shanks B, Shirchenko M, Snavely KJ, Snyder N, Steele D, Suriano AM, Tedeschi D, Tornow W, Trimble JE, Varner RL, Vasilyev S, Vetter K, Vorren K, White BR, Wilkerson JF, Wiseman C, Xu W, Yakushev E, Yaver H, Young AR, Yu CH, Yumatov V, Zhitnikov I, Zhu BX, Zimmermann S. Search for Neutrinoless Double-β Decay in ^{76}Ge with the Majorana Demonstrator. Phys Rev Lett 2018; 120:132502. [PMID: 29694188 DOI: 10.1103/physrevlett.120.132502] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 01/09/2018] [Indexed: 06/08/2023]
Abstract
The Majorana Collaboration is operating an array of high purity Ge detectors to search for neutrinoless double-β decay in ^{76}Ge. The Majorana Demonstrator comprises 44.1 kg of Ge detectors (29.7 kg enriched in ^{76}Ge) split between two modules contained in a low background shield at the Sanford Underground Research Facility in Lead, South Dakota. Here we present results from data taken during construction, commissioning, and the start of full operations. We achieve unprecedented energy resolution of 2.5 keV FWHM at Q_{ββ} and a very low background with no observed candidate events in 9.95 kg yr of enriched Ge exposure, resulting in a lower limit on the half-life of 1.9×10^{25} yr (90% C.L.). This result constrains the effective Majorana neutrino mass to below 240-520 meV, depending on the matrix elements used. In our experimental configuration with the lowest background, the background is 4.0_{-2.5}^{+3.1} counts/(FWHM t yr).
Collapse
Affiliation(s)
- C E Aalseth
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - N Abgrall
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - E Aguayo
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - S I Alvis
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - M Amman
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - I J Arnquist
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - F T Avignone
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - H O Back
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - A S Barabash
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - P S Barbeau
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - C J Barton
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - P J Barton
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - F E Bertrand
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - T Bode
- Max-Planck-Institut für Physik, München, 80805 Germany
| | - B Bos
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - M Boswell
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - A W Bradley
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R L Brodzinski
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - V Brudanin
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - M Busch
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - M Buuck
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - A S Caldwell
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - T S Caldwell
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - Y-D Chan
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - C D Christofferson
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - P-H Chu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J I Collar
- Department of Physics, University of Chicago, Chicago, Illinois 60637, USA
| | - D C Combs
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - R J Cooper
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - C Cuesta
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J A Detwiler
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - P J Doe
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J A Dunmore
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - Yu Efremenko
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - H Ejiri
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S R Elliott
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J E Fast
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - P Finnerty
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - F M Fraenkle
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - Z Fu
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - B K Fujikawa
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - E Fuller
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | | | - V M Gehman
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - T Gilliss
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - G K Giovanetti
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
| | - J Goett
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - M P Green
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J Gruszko
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - I S Guinn
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - V E Guiseppe
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A L Hallin
- Centre for Particle Physics, University of Alberta, Edmonton, Alberta T6G 2E1, Canada
| | - C R Haufe
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - L Hehn
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - R Henning
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - E W Hoppe
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - T W Hossbach
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M A Howe
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - B R Jasinski
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - R A Johnson
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - K J Keeter
- Department of Physics, Black Hills State University, Spearfish, South Dakota 57799, USA
| | - J D Kephart
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M F Kidd
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Tennessee Tech University, Cookeville, Tennessee 38505, USA
| | - A Knecht
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - S I Konovalov
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - R T Kouzes
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - B D LaFerriere
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - J Leon
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - K T Lesko
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, University of California, Berkeley, California 94720, USA
| | - L E Leviner
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - J C Loach
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Shanghai Jiao Tong University, Shanghai 200240, China
| | - A M Lopez
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - P N Luke
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J MacMullin
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - S MacMullin
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - M G Marino
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - R D Martin
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - R Massarczyk
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A B McDonald
- Department of Physics, Engineering Physics and Astronomy, Queen's University, Kingston, Ontario K7L 3N6, Canada
| | - D-M Mei
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S J Meijer
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J H Merriman
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - S Mertens
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Max-Planck-Institut für Physik, München, 80805 Germany
- Physik Department and Excellence Cluster Universe, Technische Universität, München, 85748 Germany
| | - H S Miley
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M L Miller
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - J Myslik
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - J L Orrell
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - C O'Shaughnessy
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - G Othman
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - N R Overman
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - G Perumpilly
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - W Pettus
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - D G Phillips
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - A W P Poon
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - K Pushkin
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - D C Radford
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - J Rager
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - J H Reeves
- Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - A L Reine
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - K Rielage
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - R G H Robertson
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - M C Ronquest
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - N W Ruof
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - A G Schubert
- Center for Experimental Nuclear Physics and Astrophysics, and Department of Physics, University of Washington, Seattle, Washington 98195, USA
| | - B Shanks
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - M Shirchenko
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - K J Snavely
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - N Snyder
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
| | - D Steele
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - A M Suriano
- South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA
| | - D Tedeschi
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - W Tornow
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, Duke University, Durham, North Carolina 27708, USA
| | - J E Trimble
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - R L Varner
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - S Vasilyev
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37916, USA
| | - K Vetter
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
- Department of Nuclear Engineering, University of California, Berkeley, California 94720, USA
| | - K Vorren
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - B R White
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - J F Wilkerson
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - C Wiseman
- Department of Physics and Astronomy, University of South Carolina, Columbia, South Carolina 29208, USA
| | - W Xu
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
- Department of Physics, University of South Dakota, Vermillion, South Dakota 57069, USA
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
- Department of Physics and Astronomy, University of North Carolina, Chapel Hill, North Carolina 27514, USA
| | - E Yakushev
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - H Yaver
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| | - A R Young
- Department of Physics, North Carolina State University, Raleigh, North Carolina 27695, USA
- Triangle Universities Nuclear Laboratory, Durham, North Carolina 27708, USA
| | - C-H Yu
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, USA
| | - V Yumatov
- National Research Center "Kurchatov Institute" Institute for Theoretical and Experimental Physics, Moscow, 117218 Russia
| | - I Zhitnikov
- Joint Institute for Nuclear Research, Dubna, 141980 Russia
| | - B X Zhu
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - S Zimmermann
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
| |
Collapse
|
4
|
Agostini M, Bakalyarov AM, Balata M, Barabanov I, Baudis L, Bauer C, Bellotti E, Belogurov S, Bettini A, Bezrukov L, Biernat J, Bode T, Borowicz D, Brudanin V, Brugnera R, Caldwell A, Cattadori C, Chernogorov A, Comellato T, D'Andrea V, Demidova EV, Di Marco N, Domula A, Doroshkevich E, Egorov V, Falkenstein R, Gangapshev A, Garfagnini A, Grabmayr P, Gurentsov V, Gusev K, Hakenmüller J, Hegai A, Heisel M, Hemmer S, Hiller R, Hofmann W, Hult M, Inzhechik LV, Janicskó Csáthy J, Jochum J, Junker M, Kazalov V, Kermaidic Y, Kihm T, Kirpichnikov IV, Kirsch A, Kish A, Klimenko A, Kneißl R, Knöpfle KT, Kochetov O, Kornoukhov VN, Kuzminov VV, Laubenstein M, Lazzaro A, Lindner M, Lippi I, Lubashevskiy A, Lubsandorzhiev B, Lutter G, Macolino C, Majorovits B, Maneschg W, Miloradovic M, Mingazheva R, Misiaszek M, Moseev P, Nemchenok I, Panas K, Pandola L, Pelczar K, Pertoldi L, Pullia A, Ransom C, Riboldi S, Rumyantseva N, Sada C, Salamida F, Schmitt C, Schneider B, Schönert S, Schütz AK, Schulz O, Schwingenheuer B, Selivanenko O, Shevchik E, Shirchenko M, Simgen H, Smolnikov A, Stanco L, Vanhoefer L, Vasenko AA, Veresnikova A, von Sturm K, Wagner V, Wegmann A, Wester T, Wiesinger C, Wojcik M, Yanovich E, Zhitnikov I, Zhukov SV, Zinatulina D, Zschocke A, Zsigmond AJ, Zuber K, Zuzel G. Improved Limit on Neutrinoless Double-β Decay of ^{76}Ge from GERDA Phase II. Phys Rev Lett 2018; 120:132503. [PMID: 29694176 DOI: 10.1103/physrevlett.120.132503] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 01/23/2018] [Indexed: 06/08/2023]
Abstract
The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of ^{76}Ge (^{76}Ge→^{76}Se+2e^{-}) operating bare Ge diodes with an enriched ^{76}Ge fraction in liquid argon. The exposure for broad-energy germanium type (BEGe) detectors is increased threefold with respect to our previous data release. The BEGe detectors feature an excellent background suppression from the analysis of the time profile of the detector signals. In the analysis window a background level of 1.0_{-0.4}^{+0.6}×10^{-3} counts/(keV kg yr) has been achieved; if normalized to the energy resolution this is the lowest ever achieved in any 0νββ experiment. No signal is observed and a new 90% C.L. lower limit for the half-life of 8.0×10^{25} yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×10^{25} yr.
Collapse
Affiliation(s)
- M Agostini
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - A M Bakalyarov
- National Research Centre "Kurchatov Institute", Moscow 123182, Russia
| | - M Balata
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - I Barabanov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - L Baudis
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - C Bauer
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - E Bellotti
- Dipartimento di Fisica, Università Milano Bicocca, Milan I-20126, Italy
- INFN Milano Bicocca, Milan I-20126, Italy
| | - S Belogurov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - A Bettini
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - L Bezrukov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - J Biernat
- Institute of Physics, Jagiellonian University, Cracow 31-007, Poland
| | - T Bode
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - D Borowicz
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - V Brudanin
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - R Brugnera
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - A Caldwell
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | | | - A Chernogorov
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - T Comellato
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - V D'Andrea
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - E V Demidova
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - N Di Marco
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - A Domula
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden D-01069, Germany
| | - E Doroshkevich
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - V Egorov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - R Falkenstein
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - A Gangapshev
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - A Garfagnini
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - P Grabmayr
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - V Gurentsov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - K Gusev
- Joint Institute for Nuclear Research, Dubna 141980, Russia
- National Research Centre "Kurchatov Institute", Moscow 123182, Russia
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - J Hakenmüller
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - A Hegai
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - M Heisel
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - S Hemmer
- INFN Padova, Padua I-35131, Italy
| | - R Hiller
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - W Hofmann
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - M Hult
- European Commission, JRC-Geel, Geel B-2440, Belgium
| | - L V Inzhechik
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - J Janicskó Csáthy
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - J Jochum
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - M Junker
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - V Kazalov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - Y Kermaidic
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - T Kihm
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - I V Kirpichnikov
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - A Kirsch
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - A Kish
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - A Klimenko
- Joint Institute for Nuclear Research, Dubna 141980, Russia
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - R Kneißl
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - K T Knöpfle
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - O Kochetov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - V N Kornoukhov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - V V Kuzminov
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - M Laubenstein
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - A Lazzaro
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - M Lindner
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - I Lippi
- INFN Padova, Padua I-35131, Italy
| | - A Lubashevskiy
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - B Lubsandorzhiev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - G Lutter
- European Commission, JRC-Geel, Geel B-2440, Belgium
| | - C Macolino
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - B Majorovits
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - W Maneschg
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - M Miloradovic
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - R Mingazheva
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - M Misiaszek
- Institute of Physics, Jagiellonian University, Cracow 31-007, Poland
| | - P Moseev
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - I Nemchenok
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - K Panas
- Institute of Physics, Jagiellonian University, Cracow 31-007, Poland
| | - L Pandola
- INFN Laboratori Nazionali del Sud, Catania I-95123, Italy
| | - K Pelczar
- INFN Laboratori Nazionali del Gran Sasso and Gran Sasso Science Institute, Assergi I-67100, Italy
| | - L Pertoldi
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - A Pullia
- Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan I-20133, Italy
| | - C Ransom
- Physik Institut der Universität Zürich, Zurich CH-8057, Switzerland
| | - S Riboldi
- Dipartimento di Fisica, Università degli Studi di Milano e INFN Milano, Milan I-20133, Italy
| | - N Rumyantseva
- Joint Institute for Nuclear Research, Dubna 141980, Russia
- National Research Centre "Kurchatov Institute", Moscow 123182, Russia
| | - C Sada
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - F Salamida
- INFN Laboratori Nazionali del Gran Sasso and Università degli Studi dell'Aquila, L'Aquila, Aquila I-67100, Italy
| | - C Schmitt
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - B Schneider
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden D-01069, Germany
| | - S Schönert
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - A-K Schütz
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - O Schulz
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | | | - O Selivanenko
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - E Shevchik
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - M Shirchenko
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - H Simgen
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - A Smolnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - L Stanco
- INFN Padova, Padua I-35131, Italy
| | - L Vanhoefer
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - A A Vasenko
- Institute for Theoretical and Experimental Physics, NRC "Kurchatov Institute", Moscow I-117259, Russia
| | - A Veresnikova
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - K von Sturm
- Dipartimento di Fisica e Astronomia dell'Università di Padova, Padua I-35121, Italy
- INFN Padova, Padua I-35131, Italy
| | - V Wagner
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - A Wegmann
- Max-Planck-Institut für Kernphysik, Heidelberg D-69029, Germany
| | - T Wester
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden D-01069, Germany
| | - C Wiesinger
- Physik Department and Excellence Cluster Universe, Technische Universität München, München D-85748, Germany
| | - M Wojcik
- Institute of Physics, Jagiellonian University, Cracow 31-007, Poland
| | - E Yanovich
- Institute for Nuclear Research of the Russian Academy of Sciences, Moscow 117312, Russia
| | - I Zhitnikov
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - S V Zhukov
- National Research Centre "Kurchatov Institute", Moscow 123182, Russia
| | - D Zinatulina
- Joint Institute for Nuclear Research, Dubna 141980, Russia
| | - A Zschocke
- Physikalisches Institut, Eberhard Karls Universität Tübingen, Tübingen D-72076, Germany
| | - A J Zsigmond
- Max-Planck-Institut für Physik, Munich D-80805, Germany
| | - K Zuber
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden D-01069, Germany
| | - G Zuzel
- Institute of Physics, Jagiellonian University, Cracow 31-007, Poland
| |
Collapse
|
5
|
Broussard LJ, Alarcon R, Baeßler S, Barrón Palos L, Birge N, Bode T, Bowman JD, Brunst T, Calarco JR, Caylor J, Chupp T, Cianciolo V, Crawford C, Dodson GW, DuBois J, Fan W, Farrar W, Fomin N, Frlež E, Fry J, Gericke MT, Glück F, Greene GL, Grzywacz RK, Gudkov V, Hendrus C, Hersman FW, Ito T, Li H, Macsai N, Makela MF, Mammei J, Mammei R, Martin J, Martinez M, McGaughey PL, Mertens S, Mirabal-Martinez J, Mueller P, Page SA, Penttilä SI, Picker R, Plaster B, Počanić D, Radford DC, Ramsey J, Rykaczewski KP, Salas-Bacci A, Scott EM, Sjue SKL, Smith A, Smith E, Sprow A, Stevens E, Wexler J, Whitehead R, Wilburn WS, Young AR, Zeck BA. Neutron decay correlations in the Nab experiment. ACTA ACUST UNITED AC 2017. [DOI: 10.1088/1742-6596/876/1/012005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
6
|
Agostini M, Allardt M, Andreotti E, Bakalyarov AM, Balata M, Barabanov I, Barnabé Heider M, Barros N, Baudis L, Bauer C, Becerici-Schmidt N, Bellotti E, Belogurov S, Belyaev ST, Benato G, Bettini A, Bezrukov L, Bode T, Brudanin V, Brugnera R, Budjáš D, Caldwell A, Cattadori C, Chernogorov A, Cossavella F, Demidova EV, 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 KK, Hampel W, Hegai A, Heisel M, Hemmer S, Heusser G, Hofmann W, Hult M, Inzhechik LV, Ioannucci L, Janicskó Csáthy J, Jochum J, Junker M, Kihm T, Kirpichnikov IV, Kirsch A, Klimenko A, Knöpfle KT, Kochetov O, Kornoukhov VN, Kuzminov VV, Laubenstein M, Lazzaro A, Lebedev VI, Lehnert B, Liao HY, Lindner M, Lippi I, Liu X, Lubashevskiy A, Lubsandorzhiev B, Lutter G, Macolino C, Machado AA, Majorovits B, Maneschg W, Misiaszek M, Nemchenok I, Nisi S, O'Shaughnessy C, Pandola L, Pelczar K, Pessina G, Pullia A, Riboldi S, Rumyantseva N, 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 CA, Vasenko AA, Volynets O, von Sturm K, Wagner V, Walter M, Wegmann A, Wester T, Wojcik M, Yanovich E, Zavarise P, Zhitnikov I, Zhukov SV, Zinatulina D, Zuber K, Zuzel G. Results on neutrinoless double-β decay of 76Ge from phase I of the GERDA experiment. Phys Rev Lett 2013; 111:122503. [PMID: 24093254 DOI: 10.1103/physrevlett.111.122503] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Indexed: 06/02/2023]
Abstract
Neutrinoless double beta decay is a process that violates lepton number conservation. It is predicted to occur in extensions of the standard model of particle physics. This Letter reports the results from phase I of the Germanium Detector Array (GERDA) experiment at the Gran Sasso Laboratory (Italy) searching for neutrinoless double beta decay of the isotope (76)Ge. Data considered in the present analysis have been collected between November 2011 and May 2013 with a total exposure of 21.6 kg yr. A blind analysis is performed. The background index is about 1 × 10(-2) counts/(keV kg yr) after pulse shape discrimination. No signal is observed and a lower limit is derived for the half-life of neutrinoless double beta decay of (76)Ge, T(1/2)(0ν) >2.1 × 10(25) yr (90% C.L.). The combination with the results from the previous experiments with (76)Ge yields T(1/2)(0ν)>3.0 × 10(25) yr (90% C.L.).
Collapse
Affiliation(s)
- M Agostini
- Physik Department and Excellence Cluster Universe, Technische Universität München, Germany
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
7
|
Shcherbakov R, Pe’er A, Reynolds C, Haas R, Bode T, Laguna P. Prompt emission from tidal disruptions of white dwarfs by intermediate mass black holes. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123902007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
8
|
Laguna P, Haas R, Shcherbakov R, Bode T. Tidal disruption of white dwarfs by intermediate mass black holes. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123907002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
9
|
Radetzki U, Leser U, Schulze-Rauschenbach SC, Zimmermann J, Lüssem J, Bode T, Cremers AB. Adapters, shims, and glue--service interoperability for in silico experiments. Bioinformatics 2006; 22:1137-43. [PMID: 16481335 DOI: 10.1093/bioinformatics/btl054] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
MOTIVATION Computationally, in silico experiments in biology are workflows describing the collaboration of people, data and methods. The Grid and Web services are proposed to be the next generation infrastructure supporting the deployment of bioinformatics workflows. But the growing number of autonomous and heterogeneous services pose challenges to the used middleware w.r.t. composition, i.e. discovery and interoperability of services required within in silico experiments. In the IRIS project, we handle the problem of service interoperability by a semi-automatic procedure for identifying and placing customizable adapters into workflows built by service composition. RESULTS We show the effectiveness and robustness of the software-aided composition procedure by a case study in the field of life science. In this study we combine different database services with different analysis services with the objective of discovering required adapters. Our experiments show that we can identify relevant adapters with high precision and recall.
Collapse
Affiliation(s)
- U Radetzki
- Department of Computer Science, University of Bonn D-53117 Bonn, Germany.
| | | | | | | | | | | | | |
Collapse
|
10
|
Burfitt S, Wilson J, Bode T, Pot F, Burden S, Whitehill A. Helpers — The Great Debate. Physiotherapy 1992. [DOI: 10.1016/s0031-9406(10)61393-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|