Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II

M. Agostini; A. M. Bakalyarov; M. Balata; I. Barabanov; L. Baudis; C. Bauer; E. Bellotti; S. Belogurov; A. Bettini; L. Bezrukov; J. Biernat; T. Bode; D. Borowicz; V. Brudanin; R. Brugnera; A. Caldwell; C. Cattadori; A. Chernogorov; T. Comellato; V. D'Andrea; E. V. Demidova; N. Di Marco; A. Domula; E. Doroshkevich; V. Egorov; R. Falkenstein; A. Gangapshev; A. Garfagnini; P. Grabmayr; V. Gurentsov; K. Gusev; J. Hakenmüller; A. Hegai; M. Heisel; S. Hemmer; R. Hiller; W. Hofmann; M. Hult; L. V. Inzhechik; J. Janicskó Csáthy; J. Jochum; M. Junker; V. Kazalov; Y. Kermaidic; 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; M. Lindner; I. Lippi; A. Lubashevskiy; B. Lubsandorzhiev; G. Lutter; C. Macolino; B. Majorovits; W. Maneschg; M. Miloradovic; R. Mingazheva; M. Misiaszek; P. Moseev; I. Nemchenok; K. Panas; L. Pandola; K. Pelczar; L. Pertoldi; A. Pullia; C. Ransom; S. Riboldi; N. Rumyantseva; C. Sada; F. Salamida; C. Schmitt; B. Schneider; S. Schönert; A. K. Schütz; O. Schulz; B. Schwingenheuer; O. Selivanenko; E. Shevchik; 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; A. Zschocke; A. J. Zsigmond; K. Zuber; G. Zuzel

doi:10.1103/PhysRevLett.120.132503

Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II

M. Agostini
, A. M. Bakalyarov
, M. Balata
, I. Barabanov
, L. Baudis
, C. Bauer
, E. Bellotti
, S. Belogurov
, A. Bettini
, L. Bezrukov
, J. Biernat
, T. Bode
, D. Borowicz
, V. Brudanin
, R. Brugnera
, A. Caldwell
, C. Cattadori
, A. Chernogorov
, T. Comellato
, V. D'Andrea

E. V. Demidova, N. Di Marco, A. Domula, E. Doroshkevich, V. Egorov, R. Falkenstein, A. Gangapshev, A. Garfagnini, P. Grabmayr, V. Gurentsov, K. Gusev, J. Hakenmüller, A. Hegai, M. Heisel, S. Hemmer, R. Hiller, W. Hofmann, M. Hult, L. V. Inzhechik, J. Janicskó Csáthy, J. Jochum, M. Junker, V. Kazalov, Y. Kermaidic, 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, M. Lindner, I. Lippi, A. Lubashevskiy, B. Lubsandorzhiev, G. Lutter, C. Macolino, B. Majorovits, W. Maneschg, M. Miloradovic, R. Mingazheva, M. Misiaszek, P. Moseev, I. Nemchenok, K. Panas, L. Pandola, K. Pelczar, L. Pertoldi, A. Pullia, C. Ransom, S. Riboldi, N. Rumyantseva, C. Sada, F. Salamida, C. Schmitt, B. Schneider, S. Schönert, A. K. Schütz, O. Schulz, B. Schwingenheuer, O. Selivanenko, E. Shevchik, 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, A. Zschocke, A. J. Zsigmond, K. Zuber, G. Zuzel

Chair of Experimental Astroparticle Physics

Gran Sasso Science Institute
Technical University of Munich
National Research Centre "Kurchatov Institute"
Institute for Nuclear Research of the Russian Academy of Sciences
Physik-Institut der Universität Zürich
Max-Planck-Institut für Kernphysik
Universit̀ Degli Studi di Milano-Bicocca
Sezione INFN di Milano Bicocca
National Research Nuclear University MEPhI
University of Padova
Dipartimento di Fisica 'G. Galilei' and INFN
Jagiellonian University
Joint Inst. for Nuclear Research
Henryk Niewodniczanski Institute of Nuclear Physics Polish Academy of Sciences
Max-Planck-Institut für Physik
Technische Universität Dresden
University of Tübingen
European Commission Joint Research Centre
Moscow Institute of Physics and Technology
Leibniz-Institut für Kristallzüchtung
University Paris-Sud
INFN-LNS
University of Milan
Universitá di L'Aquila
Commissariat A l'Énergie Atomique et Aux Énergies Alternatives, Centre de Saclay, IRFU

Research output: Contribution to journal › Article › peer-review

272 Scopus citations

Abstract

The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of Ge76 (Ge76→Se76+2e-) operating bare Ge diodes with an enriched Ge76 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 8.0×1025 yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×1025 yr.

Original language	English
Article number	132503
Journal	Physical Review Letters
Volume	120
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.120.132503
State	Published - 26 Mar 2018

Access to Document

10.1103/PhysRevLett.120.132503

Cite this

Agostini, M., Bakalyarov, A. M., 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., ... Zuzel, G. (2018). Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II. Physical Review Letters, 120(13), Article 132503. https://doi.org/10.1103/PhysRevLett.120.132503

@article{5ad864521ebd44d9a4250f651e78f14c,

title = "Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II",

abstract = "The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of Ge76 (Ge76→Se76+2e-) operating bare Ge diodes with an enriched Ge76 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 8.0×1025 yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×1025 yr.",

author = "M. Agostini and Bakalyarov, \{A. M.\} and M. Balata and I. Barabanov and L. Baudis and C. Bauer and E. Bellotti and S. Belogurov and A. Bettini and L. Bezrukov and J. Biernat and T. Bode and D. Borowicz and V. Brudanin and R. Brugnera and A. Caldwell and C. Cattadori and A. Chernogorov and T. Comellato 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 A. Gangapshev and A. Garfagnini and P. Grabmayr and V. Gurentsov and K. Gusev and J. Hakenm{\"u}ller and A. Hegai and M. Heisel and S. Hemmer and R. Hiller 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 Y. Kermaidic 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 M. Lindner and I. Lippi and A. Lubashevskiy and B. Lubsandorzhiev and G. Lutter and C. Macolino and B. Majorovits and W. Maneschg and M. Miloradovic and R. Mingazheva and M. Misiaszek and P. Moseev and I. Nemchenok and K. Panas and L. Pandola and K. Pelczar and L. Pertoldi and A. Pullia and C. Ransom and S. Riboldi and N. Rumyantseva and C. Sada and F. Salamida and C. Schmitt and B. Schneider and S. Sch{\"o}nert and Sch{\"u}tz, \{A. K.\} and O. Schulz and B. Schwingenheuer and O. Selivanenko and E. Shevchik 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 A. Zschocke and Zsigmond, \{A. J.\} and K. Zuber and G. Zuzel",

note = "Publisher Copyright: {\textcopyright} 2018 American Physical Society.",

year = "2018",

month = mar,

day = "26",

doi = "10.1103/PhysRevLett.120.132503",

language = "English",

volume = "120",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

}

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 2018, 'Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II', Physical Review Letters, vol. 120, no. 13, 132503. https://doi.org/10.1103/PhysRevLett.120.132503

TY - JOUR

T1 - Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II

AU - Agostini, M.

AU - Bakalyarov, A. M.

AU - Balata, M.

AU - Barabanov, I.

AU - Baudis, L.

AU - Bauer, C.

AU - Bellotti, E.

AU - Belogurov, S.

AU - Bettini, A.

AU - Bezrukov, L.

AU - Biernat, J.

AU - Bode, T.

AU - Borowicz, D.

AU - Brudanin, V.

AU - Brugnera, R.

AU - Caldwell, A.

AU - Cattadori, C.

AU - Chernogorov, A.

AU - Comellato, T.

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 - Gangapshev, A.

AU - Garfagnini, A.

AU - Grabmayr, P.

AU - Gurentsov, V.

AU - Gusev, K.

AU - Hakenmüller, J.

AU - Hegai, A.

AU - Heisel, M.

AU - Hemmer, S.

AU - Hiller, R.

AU - Hofmann, W.

AU - Hult, M.

AU - Inzhechik, L. V.

AU - Janicskó Csáthy, J.

AU - Jochum, J.

AU - Junker, M.

AU - Kazalov, V.

AU - Kermaidic, Y.

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 - Lindner, M.

AU - Lippi, I.

AU - Lubashevskiy, A.

AU - Lubsandorzhiev, B.

AU - Lutter, G.

AU - Macolino, C.

AU - Majorovits, B.

AU - Maneschg, W.

AU - Miloradovic, M.

AU - Mingazheva, R.

AU - Misiaszek, M.

AU - Moseev, P.

AU - Nemchenok, I.

AU - Panas, K.

AU - Pandola, L.

AU - Pelczar, K.

AU - Pertoldi, L.

AU - Pullia, A.

AU - Ransom, C.

AU - Riboldi, S.

AU - Rumyantseva, N.

AU - Sada, C.

AU - Salamida, F.

AU - Schmitt, C.

AU - Schneider, B.

AU - Schönert, S.

AU - Schütz, A. K.

AU - Schulz, O.

AU - Schwingenheuer, B.

AU - Selivanenko, O.

AU - Shevchik, 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 - Zschocke, A.

AU - Zsigmond, A. J.

AU - Zuber, K.

AU - Zuzel, G.

PY - 2018/3/26

Y1 - 2018/3/26

N2 - The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of Ge76 (Ge76→Se76+2e-) operating bare Ge diodes with an enriched Ge76 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 8.0×1025 yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×1025 yr.

AB - The GERDA experiment searches for the lepton-number-violating neutrinoless double-β decay of Ge76 (Ge76→Se76+2e-) operating bare Ge diodes with an enriched Ge76 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 8.0×1025 yr is placed when combining with our previous data. The expected median sensitivity assuming no signal is 5.8×1025 yr.

UR - https://www.scopus.com/pages/publications/85044508224

U2 - 10.1103/PhysRevLett.120.132503

DO - 10.1103/PhysRevLett.120.132503

M3 - Article

C2 - 29694176

AN - SCOPUS:85044508224

SN - 0031-9007

VL - 120

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132503

ER -

Improved Limit on Neutrinoless Double- β Decay of Ge 76 from GERDA Phase II

Abstract

Access to Document

Other files and links

Fingerprint

Cite this