Search for neutrinoless double beta decay with the Gerda experiment: 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. 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; K. Zuber; G. Zuzel

Search for neutrinoless double beta decay with the Gerda experiment: 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. ChernogorovV. 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. 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, K. Zuber, G. Zuzel

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Abstract

The GERmanium Detector Array (Gerda) experiment, located at the Gran Sasso underground laboratory in Italy, is built for the search of 0vββ decay in ⁷⁶Ge. Gerda operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase I of the experiment was completed reaching an exposure of about 21 kg.yr with a background level of 10^-2 cts/(keV.kg.yr). Gerda Phase I set a limit on the 0vββ decay of ⁷⁶Ge of T_1/2^0v > 2.1.10²⁵ yr. In Phase II 35 kg of germanium detectors enriched in ⁷⁶Ge are operated to reach an exposure of 100 kg.yr. The design goal is to reduce the background by one order of magnitude to reach the sensitivity for T_1/2^0v = (10²⁶) yr. The Phase II setup comprises thirty newly produced Broad Energy Germanium (BEGe) 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. The hardware upgrade for Phase II was finished and all detectors were deployed in December 2015. We present the first results of Phase II with 10.8 kg.yr exposure reached in June 2016.

Original language	English
Journal	Proceedings of Science
Volume	Part F128556
State	Published - 2016
Event	38th International Conference on High Energy Physics, ICHEP 2016 - Chicago, United States Duration: 3 Aug 2016 → 10 Aug 2016

Cite this

Agostini, M., Allardt, M., Bakalyarov, A. M., Balata, M., Barabanov, I., Baudis, L., Bauer, C., Bellotti, E., Belogurov, S., Belyaev, S. T., Benato, G., Bettini, A., Bezrukov, L., Bode, T., Borowicz, D., Brudanin, V., Brugnera, R., Caldwell, A., Cattadori, C., ... Zuzel, G. (2016). Search for neutrinoless double beta decay with the Gerda experiment: Phase II. Proceedings of Science, Part F128556.

@article{c49d41167a1f4ab4adff68315b1fbcfb,

title = "Search for neutrinoless double beta decay with the Gerda experiment: Phase II",

abstract = "The GERmanium Detector Array (Gerda) experiment, located at the Gran Sasso underground laboratory in Italy, is built for the search of 0vββ decay in 76Ge. Gerda operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase I of the experiment was completed reaching an exposure of about 21 kg.yr with a background level of 10-2 cts/(keV.kg.yr). Gerda Phase I set a limit on the 0vββ decay of 76Ge of T1/20v > 2.1.1025 yr. In Phase II 35 kg of germanium detectors enriched in 76Ge are operated to reach an exposure of 100 kg.yr. The design goal is to reduce the background by one order of magnitude to reach the sensitivity for T1/20v = (1026) yr. The Phase II setup comprises thirty newly produced Broad Energy Germanium (BEGe) 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. The hardware upgrade for Phase II was finished and all detectors were deployed in December 2015. We present the first results of Phase II with 10.8 kg.yr exposure reached in June 2016.",

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. 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 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).; 38th International Conference on High Energy Physics, ICHEP 2016 ; Conference date: 03-08-2016 Through 10-08-2016",

year = "2016",

language = "English",

volume = "Part F128556",

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, 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, Zuber, K & Zuzel, G 2016, 'Search for neutrinoless double beta decay with the Gerda experiment: Phase II', Proceedings of Science, vol. Part F128556.

TY - JOUR

T1 - Search for neutrinoless double beta decay with the Gerda experiment

T2 - 38th International Conference on High Energy Physics, ICHEP 2016

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 - 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 - 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 Gran Sasso underground laboratory in Italy, is built for the search of 0vββ decay in 76Ge. Gerda operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase I of the experiment was completed reaching an exposure of about 21 kg.yr with a background level of 10-2 cts/(keV.kg.yr). Gerda Phase I set a limit on the 0vββ decay of 76Ge of T1/20v > 2.1.1025 yr. In Phase II 35 kg of germanium detectors enriched in 76Ge are operated to reach an exposure of 100 kg.yr. The design goal is to reduce the background by one order of magnitude to reach the sensitivity for T1/20v = (1026) yr. The Phase II setup comprises thirty newly produced Broad Energy Germanium (BEGe) 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. The hardware upgrade for Phase II was finished and all detectors were deployed in December 2015. We present the first results of Phase II with 10.8 kg.yr exposure reached in June 2016.

AB - The GERmanium Detector Array (Gerda) experiment, located at the Gran Sasso underground laboratory in Italy, is built for the search of 0vββ decay in 76Ge. Gerda operates bare high purity germanium detectors submersed in liquid Argon (LAr). Phase I of the experiment was completed reaching an exposure of about 21 kg.yr with a background level of 10-2 cts/(keV.kg.yr). Gerda Phase I set a limit on the 0vββ decay of 76Ge of T1/20v > 2.1.1025 yr. In Phase II 35 kg of germanium detectors enriched in 76Ge are operated to reach an exposure of 100 kg.yr. The design goal is to reduce the background by one order of magnitude to reach the sensitivity for T1/20v = (1026) yr. The Phase II setup comprises thirty newly produced Broad Energy Germanium (BEGe) 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. The hardware upgrade for Phase II was finished and all detectors were deployed in December 2015. We present the first results of Phase II with 10.8 kg.yr exposure reached in June 2016.

UR - http://www.scopus.com/inward/record.url?scp=85025818726&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85025818726

SN - 1824-8039

VL - Part F128556

JO - Proceedings of Science

JF - Proceedings of Science

Y2 - 3 August 2016 through 10 August 2016

ER -

Search for neutrinoless double beta decay with the Gerda experiment: Phase II

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