Title: Measurement of the half-life of the two-neutrino double beta decay of 76Ge with the Gerda experiment
Authors: ANDREOTTI ERICAHULT MikaelLUTTER GUILLAUMEAGOSTINI M.ALLARDT M.BAKALYAROV A.m.BALATA M.BARABANOV I.BARNABE HEIDER MBARROS N.BAUDIS L.BAUER C.BECERICI-SCHMIDT N.BELLOTTI E.BELOGUROV S.BELYAEV S.t.BENATO G.BETTINI A.BEZRUKOV L.BODE T.BRUDANIN V.BRUGNERA R.BUDJAS D.CALDWELL A.CATTADORI CCHERNOGOROV A.COSSAVELLA F.DEMIDOVA E.v.DENISOV A.DOMULA A.r.EGOROV V.FALKENSTEIN R.FERELLA A.FREUND K.FROBORG F.FRODYMA N.GANGAPSHEV A.GARFAGNINI A.GRABMAYR P.GAZZANA S.GURENTSOV V.GUSEV K.GUTHIKONDA K. K.HAMPEL W.HEGAI A.HEISEL M.HEMMER S.HEUSSER G.HOFMANN W.IOANNUCCI L.Inzhechik L.JANICSKO J.JOCHUM J.JUNKER M.KIANOVSKY S.KIRPICHNIKOV IKIRSCH A.KLIMENKO A.KNOEPFLE K.t.KOCHETOV O.Kornoukhov V.LAUBENSTEIN M.LAZZARO A.LEBEDEV VLEHNERT B.LIAO H.LINDNER M.LIPPI I.LIU X.LUBASHEVSKY A.LUBSANDORZHIEV B.MACHADO A. A.Majorovits B.MANESCHG W.NEMCHENOK I.NISI S.O'SHAUGHNESSY C.PANDOLA L.PELCZAR K.PERARO L.PULLIA A.KUZMINOV V.RITTER F.RIBOLDI S.SADA C.SALATHE M.SCHMITT C.SCHREINER J.SCHOENERT S.SCHULZ O.SCHWINGENHEUER B.SHEVCHIK E.SHIRCHENKO M.SIMGEN H.SMOLNIKOV A.STRECKER H.STANCO L.TARKA M.VOLYNETS O.VON STURM K.WALTER M.WEGMANN A.WOJCIK M.YANOVICH E.ZAVARISE P.ZHITNIKOV I.ZINATULINA D.ZUBER K.ZUZEL G.VASENKO A. A.UR C AZHUKOV S. V.FROBORG F.
Citation: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS vol. 40 no. 3 p. 035110
Publisher: IOP PUBLISHING LTD
Publication Year: 2013
JRC N°: JRC78244
ISSN: 0954-3899
URI: http://iopscience.iop.org/0954-3899/40/3/035110/
http://publications.jrc.ec.europa.eu/repository/handle/JRC78244
DOI: 10.1088/0954-3899/40/3/035110
Type: Articles in periodicals and books
Abstract: 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.
JRC Directorate:Health, Consumers and Reference Materials

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