Title: Limit on neutrinoless double beta decay of 76Ge by GERDA
Authors: AGOSTINI M.ALLARDT M.ANDREOTTI ERICABAKALYAROV 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.DOMULA A.r.EGOROV V.FALKENSTEIN R.FERELLA A.FREUND K.FRODYMA N.GANGAPSHEV A.GARFAGNINI A.GOTTI C.GRABMAYR P.GURENTSOV V.GUSEV K.GUTHIKONDA K. K.HAMPEL W.HEGAI A.HEISEL M.HEMMER S.HEUSSER G.HOFMANN W.HULT MikaelInzhechik L.JANICSKO J.JOCHUM J.JUNKER M.KIHM T.KIRPICHNIKOV IKIRSCH A.KLIMENKO A.KNOEPFLE K.t.KOCHETOV O.KUZMINOV V.Kornoukhov V.LAUBENSTEIN M.LAZZARO A.LEBEDEV VLEHNERT B.LIAO H.LINDNER M.LIPPI I.LUBASHEVSKY A.LUBSANDORZHIEV B.LUTTER GUILLAUMEMACHADO A. A.MACOLINO C.MANESCHG W.MISIASZEK M.Majorovits B.NEMCHENOK I.NISI S.O'SHAUGHNESSY C.PANDOLA L.PELCZAR K.PESSINA G.PULLIA A.RIBOLDI S.RUMYANTSEVA N.SADA C.SALATHE M.SCHMITT C.SCHOENERT S.SCHREINER J.SCHULZ O.SCHWINGENHEUER B.SHEVCHIK E.SHIRCHENKO M.SIMGEN H.SMOLNIKOV A.STANCO L.STRECKER H.TARKA M.UR C AVASENKO A. A.VOLYNETS O.VON STURM K.WAGNER V.WALTER M.WEGMANN A.WESTER T.WOJCIK M.YANOVICH E.ZAVARISE P.ZHITNIKOV I.ZHUKOV S. V.ZINATULINA D.ZUBER K.ZUZEL G.
Citation: PHYSICS PROCEDIA vol. 61 p. 828-837
Publisher: ELSEVIER BV
Publication Year: 2015
JRC N°: JRC103969
ISSN: 1875-3892
URI: http://www.sciencedirect.com/science?_ob=ArticleListURL&_method=list&_ArticleListID=-1090286269&_sort=r&_st=13&view=c&md5=4fccc82d615e1e6ee766b4e09887d3ae&searchtype=a
http://publications.jrc.ec.europa.eu/repository/handle/JRC103969
DOI: 10.1016/j.phpro.2015.06.002
Type: Articles in periodicals and books
Abstract: The Gerda experiment at the Laboratori Nazionali del Gran Sasso in Italy uses germanium detectors made from material with an enriched 76Ge isotope fraction to search for neutrinoless double beta decay of this nucleus. Applying a blind analysis we find no signal after an exposure of 21.6 kg·yr and a background of about 0.01 cts/(keV·kg·yr). A half-life limit of T0ν 1/2 > 2.1 · 1025 yr (90% C.L.) is extracted. The previous claim of a signal for 76Ge is excluded with 99% probability in a model independent way.
JRC Directorate:Nuclear Safety and Security

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