Measurement of the half-life of the two-neutrino double beta decay of Ge-76 with the Gerda experiment
Creators: name: GERDA Collaboration
name: Agostini, M.
name: Allardt, M.
name: Andreotti, E.
name: Bakalyarov, A. M.
name: Balata, M.
name: Barabanov, I.
name: Heider, M. Barnabe
name: Barros, N.
name: Baudis, L.
name: Bauer, C.
name: Becerici-Schmidt, N.
name: Bellotti, E.
name: Belogurov, S.
name: Belyaev, S. T.
name: Benato, G.
name: Bettini, A.
name: Bezrukov, L.
name: Bode, T.
name: Brudanin, V.
name: Brugnera, R.
name: Budjas, D.
name: Caldwell, A.
name: Cattadori, C.
name: Chernogorov, A.
name: Cossavella, F.
name: Demidova, E. V.
name: Denisov, A.
name: Domula, A.
name: Egorov, V.
name: Falkenstein, R.
name: Ferella, A. D.
name: Freund, K.
name: Froborg, F.
name: Frodyma, N.
name: Gangapshev, A.
name: Garfagnini, A.
name: Gazzana, S.
name: Grambayr, P.
name: Gurentsov, V.
name: Gusev, K.
name: Guthikonda, K. K.
name: Hampel, W.
name: Hegai, A.
name: Heisel, M.
name: Hemmer, S.
name: Heusser, G.
name: Hofmann, W.
name: Hult, M.
name: Inzhechik, L. V.
name: Ioannucci, L.
name: Csathy, J. Janicsko
name: Jochum, J.
name: Junker, M.
name: Kianovsky, S.
name: Kirpichnikov, I. V.
name: Kirsch, A.
name: Klimenko, A.
name: Knoepfle, K. T.
name: Kochetov, O.
name: Kornoukhov, V. N.
name: Kusminov, V.
name: Laubenstein, M.
name: Lazzaro, A.
name: Lebedev, V. I.
name: Lehnert, B.
name: Liao, H. Y.
name: Lindner, M.
name: Lippi, I.
name: Liu, X.
name: Lubashevskiy, A.
name: Lubsandorzhiev, B.
name: Lutter, G.
name: Machado, A. A.
name: Majorovits, B.
name: Maneschg, W.
name: Nemchenok, I.
name: Nisi, S.
name: O'Shaughnessy, C.
name: Pandola, L.
name: Pelczar, K.
name: Peraro, L.
name: Pullia, A.
name: Riboldi, S.
name: Ritter, F.
name: Sada, C.
name: Salathe, M.
name: Schmitt, C.
name: Schoenert, S.
name: Schreiner, J.
name: Schulz, O.
name: Schwingenheuer, B.
name: Shevchik, E.
name: Shirchenko, M.
name: Simgen, H.
name: Smolnikov, A.
name: Stanco, L.
name: Strecker, H.
name: Tarka, M.
name: Ur, C. A.
name: Vasenko, A. A.
name: Volynets, O.
name: von Sturm, K.
name: Walter, M.
name: Wegmann, A.
name: Wojcik, M.
name: Yanovich, E.
name: Zavarise, P.
name: Zhitnikov, I.
name: Zhukov, S. V.
name: Zinatulina, D.
name: Zuber, K.
name: Zuzel, G.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: The primary goal of the GERmanium Detector Array (Gerda) experiment at the Laboratori Nazionali del Gran Sasso of INFN is the search for the neutrinoless double beta decay of Ge-76. High-purity germanium detectors made from material enriched in Ge-76 are operated directly immersed in liquid argon, allowing for a substantial reduction of the background with respect to predecessor experiments. The first 5.04 kg yr of data collected in Phase I of the experiment have been analyzed to measure the half-life of the neutrino-accompanied double beta decay of Ge-76. The observed spectrum in the energy range between 600 and 1800 keV is dominated by the double beta decay of Ge-76. The half-life extracted from Gerda data is T(1/2) = (1.84 +0.14 -0.10) 10^{21} yr.
description: 14 pages, 2 figures, submitted to J. Phys. G: Nucl. Part. Phys