First results of GERDA Phase II

M. Agostini; M. Allardt; A. M. Bakalyarov; M. Balata; I. Barabanov; L. Baudis; C. Bauer; E. Bellotti; S. Belogurov; S. T. Belyaev; G. Benato; A. Bettini; L. Bezrukov; T. Bode; D. Borowicz; V. Brudanin; R. Brugnera; A. Caldwell; C. Cattadori; A. Chernogorov; V. D'Andrea; E. V. Demidova; N. Di Marco; A. Domula; E. Doroshkevich; V. Egorov; R. Falkenstein; N. Frodyma; A. Gangapshev; A. Garfagnini; C. Gooch; P. Grabmayr; V. Gurentsov; K. Gusev; J. Hakenmüller; A. Hegai; M. Heisel; S. Hemmer; W. Hofmann; M. Hult; L. V. Inzhechik; J. Janicskó Csáthy; J. Jochum; M. Junker; V. Kazalov; T. Kihm; I. V. Kirpichnikov; A. Kirsch; A. Kish; A. Klimenko; R. Kneißl; K. T. Knöpfle; O. Kochetov; V. N. Kornoukhov; V. V. Kuzminov; M. Laubenstein; A. Lazzaro; V. I. Lebedev; B. Lehnert; H. Y. Liao; M. Lindner; I. Lippi; A. Lubashevskiy; B. Lubsandorzhiev; G. Lutter; C. Macolino; B. Majorovits; W. Maneschg; E. Medinaceli; M. Miloradovic; R. Mingazheva; M. Misiaszek; P. Moseev; I. Nemchenok; D. Palioselitis; K. Panas; L. Pandola; K. Pelczar; A. Pullia; S. Riboldi; N. Rumyantseva; C. Sada; F. Salamida; M. Salathe; C. Schmitt; B. Schneider; S. Schönert; J. Schreiner; O. Schulz; A. K. Schütz; B. Schwingenheuer; O. Selivanenko; E. Shevzik; M. Shirchenko; H. Simgen; A. Smolnikov; L. Stanco; L. Vanhoefer; A. A. Vasenko; A. Veresnikova; K. Von Sturm; V. Wagner; A. Wegmann; T. Wester; C. Wiesinger; M. Wojcik; E. Yanovich; I. Zhitnikov; S. V. Zhukov; D. Zinatulina; K. Zuber; G. Zuzel

First results of GERDA Phase II

M. Agostini
, M. Allardt
, A. M. Bakalyarov
, M. Balata
, I. Barabanov
, L. Baudis
, C. Bauer
, E. Bellotti
, S. Belogurov
, S. T. Belyaev
, G. Benato
, A. Bettini
, L. Bezrukov
, T. Bode
, D. Borowicz
, V. Brudanin
, R. Brugnera
, A. Caldwell
, C. Cattadori
, A. Chernogorov

V. D'Andrea, E. V. Demidova, N. Di Marco, A. Domula, E. Doroshkevich, V. Egorov, R. Falkenstein, N. Frodyma, A. Gangapshev, A. Garfagnini, C. Gooch, P. Grabmayr, V. Gurentsov, K. Gusev, J. Hakenmüller, A. Hegai, M. Heisel, S. Hemmer, W. Hofmann, M. Hult, L. V. Inzhechik, J. Janicskó Csáthy, J. Jochum, M. Junker, V. Kazalov, T. Kihm, I. V. Kirpichnikov, A. Kirsch, A. Kish, A. Klimenko, R. Kneißl, K. T. Knöpfle, O. Kochetov, V. N. Kornoukhov, V. V. Kuzminov, M. Laubenstein, A. Lazzaro, V. I. Lebedev, B. Lehnert, H. Y. Liao, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, E. Medinaceli, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, I. Nemchenok, D. Palioselitis, K. Panas, L. Pandola, K. Pelczar, A. Pullia, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, M. Salathe, C. Schmitt, B. Schneider, S. Schönert, J. Schreiner, O. Schulz, A. K. Schütz, B. Schwingenheuer, O. Selivanenko, E. Shevzik, M. Shirchenko, H. Simgen, A. Smolnikov, L. Stanco, L. Vanhoefer, A. A. Vasenko, A. Veresnikova, K. Von Sturm, V. Wagner, A. Wegmann, T. Wester, C. Wiesinger, M. Wojcik, E. Yanovich, I. Zhitnikov, S. V. Zhukov, D. Zinatulina, K. Zuber, G. Zuzel

Chair of Experimental Astroparticle Physics

GSSI (INFN)
Technische Universität Dresden
Kurchatov Moscow
Institute for Nuclear Research of the Russian Academy of Sciences
University of Zurich
MPI Heidelberg
Universit̀ Degli Studi di Milano-Bicocca
Sezione INFN di Milano Bicocca
ITEP
University of Padova
Dipartimento di Fisica 'G. Galilei' and INFN
Technical University of Munich
IoP Cracow
Joint Inst. for Nuclear Research
MPI Munich
University of Tübingen
EU
LNS (INFN)
University of Milan

Research output: Contribution to journal › Conference article › peer-review

Abstract

The GErmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sass15, searches for the 0νββ decay of ⁷⁶Ge. Gerda Phase II was started in December 2015, aiming to reach a sensitivity on the 0νββ decay half-life larger than 10²⁶ yr in three yr of data taking with about 100 kg·yr exposure with background index of about 10^-3 cts/(keV·kg·yr). The major upgrade of Phase II is the deployment of thirty newly produced Broad Energy Germanium detectors. They contribute to the background reduction with better energy resolution and enhanced pulse shape discrimination. To achieve the necessary background reduction, the setup was complemented with LAr veto. After 6 months of operation a first data release with 10.8 kg·yr exposure was performed, showing that the background goal has been achieved. A new lower limit on the 0νββ decay half life of ⁷⁶Ge of 5.3·10²⁵ yr (90% C.L.) has been set.

Original language	English
Article number	098
Journal	Proceedings of Science
State	Published - 2016
Event	9th Neutrino Oscillation Workshop, NOW 2016 - Otranto, Lecce, Italy Duration: 4 Sep 2016 → 11 Sep 2016

Cite this

@article{6adac0f156b24a8bad1d7fa503a17fd3,

title = "First results of GERDA Phase II",

abstract = "The GErmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sass15, searches for the 0νββ decay of 76Ge. Gerda Phase II was started in December 2015, aiming to reach a sensitivity on the 0νββ decay half-life larger than 1026 yr in three yr of data taking with about 100 kg·yr exposure with background index of about 10-3 cts/(keV·kg·yr). The major upgrade of Phase II is the deployment of thirty newly produced Broad Energy Germanium detectors. They contribute to the background reduction with better energy resolution and enhanced pulse shape discrimination. To achieve the necessary background reduction, the setup was complemented with LAr veto. After 6 months of operation a first data release with 10.8 kg·yr exposure was performed, showing that the background goal has been achieved. A new lower limit on the 0νββ decay half life of 76Ge of 5.3·1025 yr (90\% C.L.) has been set.",

author = "M. Agostini and M. Allardt and Bakalyarov, \{A. M.\} and M. Balata and I. Barabanov and L. Baudis and C. Bauer and E. Bellotti and S. Belogurov and Belyaev, \{S. T.\} and G. Benato and A. Bettini and L. Bezrukov and T. Bode and D. Borowicz and V. Brudanin and R. Brugnera and A. Caldwell and C. Cattadori and A. Chernogorov and V. D'Andrea and Demidova, \{E. V.\} and \{Di Marco\}, N. and A. Domula and E. Doroshkevich and V. Egorov and R. Falkenstein and N. Frodyma and A. Gangapshev and A. Garfagnini and C. Gooch and P. Grabmayr and V. Gurentsov and K. Gusev and J. Hakenm{\"u}ller and A. Hegai and M. Heisel and S. Hemmer and W. Hofmann and M. Hult and Inzhechik, \{L. V.\} and \{Janicsk{\'o} Cs{\'a}thy\}, J. and J. Jochum and M. Junker and V. Kazalov and T. Kihm and Kirpichnikov, \{I. V.\} and A. Kirsch and A. Kish and A. Klimenko and R. Knei{\ss}l and Kn{\"o}pfle, \{K. T.\} and O. Kochetov and Kornoukhov, \{V. N.\} and Kuzminov, \{V. V.\} and M. Laubenstein and A. Lazzaro and Lebedev, \{V. I.\} and B. Lehnert and Liao, \{H. Y.\} and M. Lindner and I. Lippi and A. Lubashevskiy and B. Lubsandorzhiev and G. Lutter and C. Macolino and B. Majorovits and W. Maneschg and E. Medinaceli and M. Miloradovic and R. Mingazheva and M. Misiaszek and P. Moseev and I. Nemchenok and D. Palioselitis and K. Panas and L. Pandola and K. Pelczar and A. Pullia and S. Riboldi and N. Rumyantseva and C. Sada and F. Salamida and M. Salathe and C. Schmitt and B. Schneider and S. Sch{\"o}nert and J. Schreiner and O. Schulz and Sch{\"u}tz, \{A. K.\} and B. Schwingenheuer and O. Selivanenko and E. Shevzik and M. Shirchenko and H. Simgen and A. Smolnikov and L. Stanco and L. Vanhoefer and Vasenko, \{A. A.\} and A. Veresnikova and \{Von Sturm\}, K. and V. Wagner and A. Wegmann and T. Wester and C. Wiesinger and M. Wojcik and E. Yanovich and I. Zhitnikov and Zhukov, \{S. V.\} and D. Zinatulina and K. Zuber and G. Zuzel",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).; 9th Neutrino Oscillation Workshop, NOW 2016 ; Conference date: 04-09-2016 Through 11-09-2016",

year = "2016",

language = "English",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

Agostini, M, Allardt, M, Bakalyarov, AM, Balata, M, Barabanov, I, Baudis, L, Bauer, C, Bellotti, E, Belogurov, S, Belyaev, ST, Benato, G, Bettini, A, Bezrukov, L, Bode, T, Borowicz, D, Brudanin, V, Brugnera, R, Caldwell, A, Cattadori, C, Chernogorov, A, D'Andrea, V, Demidova, EV, Di Marco, N, Domula, A, Doroshkevich, E, Egorov, V, Falkenstein, R, Frodyma, N, Gangapshev, A, Garfagnini, A, Gooch, C, Grabmayr, P, Gurentsov, V, Gusev, K, Hakenmüller, J, Hegai, A, Heisel, M, Hemmer, S, Hofmann, W, Hult, M, Inzhechik, LV, Janicskó Csáthy, J, Jochum, J, Junker, M, Kazalov, V, Kihm, T, Kirpichnikov, IV, Kirsch, A, Kish, A, Klimenko, A, Kneißl, R, Knöpfle, KT, Kochetov, O, Kornoukhov, VN, Kuzminov, VV, Laubenstein, M, Lazzaro, A, Lebedev, VI, Lehnert, B, Liao, HY, Lindner, M, Lippi, I, Lubashevskiy, A, Lubsandorzhiev, B, Lutter, G, Macolino, C, Majorovits, B, Maneschg, W, Medinaceli, E, Miloradovic, M, Mingazheva, R, Misiaszek, M, Moseev, P, Nemchenok, I, Palioselitis, D, Panas, K, Pandola, L, Pelczar, K, Pullia, A, Riboldi, S, Rumyantseva, N, Sada, C, Salamida, F, Salathe, M, Schmitt, C, Schneider, B, Schönert, S, Schreiner, J, Schulz, O, Schütz, AK, Schwingenheuer, B, Selivanenko, O, Shevzik, 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, Zuber, K & Zuzel, G 2016, 'First results of GERDA Phase II', Proceedings of Science.

TY - JOUR

T1 - First results of GERDA Phase II

AU - Agostini, M.

AU - Allardt, M.

AU - Bakalyarov, A. M.

AU - Balata, M.

AU - Barabanov, I.

AU - Baudis, L.

AU - Bauer, C.

AU - Bellotti, E.

AU - Belogurov, S.

AU - Belyaev, S. T.

AU - Benato, G.

AU - Bettini, A.

AU - Bezrukov, L.

AU - Bode, T.

AU - Borowicz, D.

AU - Brudanin, V.

AU - Brugnera, R.

AU - Caldwell, A.

AU - Cattadori, C.

AU - Chernogorov, A.

AU - D'Andrea, V.

AU - Demidova, E. V.

AU - Di Marco, N.

AU - Domula, A.

AU - Doroshkevich, E.

AU - Egorov, V.

AU - Falkenstein, R.

AU - Frodyma, N.

AU - Gangapshev, A.

AU - Garfagnini, A.

AU - Gooch, C.

AU - Grabmayr, P.

AU - Gurentsov, V.

AU - Gusev, K.

AU - Hakenmüller, J.

AU - Hegai, A.

AU - Heisel, M.

AU - Hemmer, S.

AU - Hofmann, W.

AU - Hult, M.

AU - Inzhechik, L. V.

AU - Janicskó Csáthy, J.

AU - Jochum, J.

AU - Junker, M.

AU - Kazalov, V.

AU - Kihm, T.

AU - Kirpichnikov, I. V.

AU - Kirsch, A.

AU - Kish, A.

AU - Klimenko, A.

AU - Kneißl, R.

AU - Knöpfle, K. T.

AU - Kochetov, O.

AU - Kornoukhov, V. N.

AU - Kuzminov, V. V.

AU - Laubenstein, M.

AU - Lazzaro, A.

AU - Lebedev, V. I.

AU - Lehnert, B.

AU - Liao, H. Y.

AU - Lindner, M.

AU - Lippi, I.

AU - Lubashevskiy, A.

AU - Lubsandorzhiev, B.

AU - Lutter, G.

AU - Macolino, C.

AU - Majorovits, B.

AU - Maneschg, W.

AU - Medinaceli, E.

AU - Miloradovic, M.

AU - Mingazheva, R.

AU - Misiaszek, M.

AU - Moseev, P.

AU - Nemchenok, I.

AU - Palioselitis, D.

AU - Panas, K.

AU - Pandola, L.

AU - Pelczar, K.

AU - Pullia, A.

AU - Riboldi, S.

AU - Rumyantseva, N.

AU - Sada, C.

AU - Salamida, F.

AU - Salathe, M.

AU - Schmitt, C.

AU - Schneider, B.

AU - Schönert, S.

AU - Schreiner, J.

AU - Schulz, O.

AU - Schütz, A. K.

AU - Schwingenheuer, B.

AU - Selivanenko, O.

AU - Shevzik, E.

AU - Shirchenko, M.

AU - Simgen, H.

AU - Smolnikov, A.

AU - Stanco, L.

AU - Vanhoefer, L.

AU - Vasenko, A. A.

AU - Veresnikova, A.

AU - Von Sturm, K.

AU - Wagner, V.

AU - Wegmann, A.

AU - Wester, T.

AU - Wiesinger, C.

AU - Wojcik, M.

AU - Yanovich, E.

AU - Zhitnikov, I.

AU - Zhukov, S. V.

AU - Zinatulina, D.

AU - Zuber, K.

AU - Zuzel, G.

N1 - Publisher Copyright: © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).

PY - 2016

Y1 - 2016

N2 - The GErmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sass15, searches for the 0νββ decay of 76Ge. Gerda Phase II was started in December 2015, aiming to reach a sensitivity on the 0νββ decay half-life larger than 1026 yr in three yr of data taking with about 100 kg·yr exposure with background index of about 10-3 cts/(keV·kg·yr). The major upgrade of Phase II is the deployment of thirty newly produced Broad Energy Germanium detectors. They contribute to the background reduction with better energy resolution and enhanced pulse shape discrimination. To achieve the necessary background reduction, the setup was complemented with LAr veto. After 6 months of operation a first data release with 10.8 kg·yr exposure was performed, showing that the background goal has been achieved. A new lower limit on the 0νββ decay half life of 76Ge of 5.3·1025 yr (90% C.L.) has been set.

AB - The GErmanium Detector Array (Gerda) experiment, located at the Laboratori Nazionali del Gran Sass15, searches for the 0νββ decay of 76Ge. Gerda Phase II was started in December 2015, aiming to reach a sensitivity on the 0νββ decay half-life larger than 1026 yr in three yr of data taking with about 100 kg·yr exposure with background index of about 10-3 cts/(keV·kg·yr). The major upgrade of Phase II is the deployment of thirty newly produced Broad Energy Germanium detectors. They contribute to the background reduction with better energy resolution and enhanced pulse shape discrimination. To achieve the necessary background reduction, the setup was complemented with LAr veto. After 6 months of operation a first data release with 10.8 kg·yr exposure was performed, showing that the background goal has been achieved. A new lower limit on the 0νββ decay half life of 76Ge of 5.3·1025 yr (90% C.L.) has been set.

UR - https://www.scopus.com/pages/publications/85045513674

M3 - Conference article

AN - SCOPUS:85045513674

SN - 1824-8039

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 098

T2 - 9th Neutrino Oscillation Workshop, NOW 2016

Y2 - 4 September 2016 through 11 September 2016

ER -

First results of GERDA Phase II

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