The Majorana Demonstrator: A search for neutrinoless double-beta decay of germanium-76

J. Esterline,J. A. Detwiler ,W. Xu ,J. E. Fast ,A. Schubert ,L. Mizouni,K. Gusev ,V. Timkin,B. D. Laferriere ,S. Vasilyev ,K. J. Keeter ,J. Goett ,Y. V. Efremenko ,M. Nomachi,V. Brudanin,M. F. Kidd ,R. Hazama,A. Galindo‐Uribarri ,D. G. Phillips ,Y. D. Chan ,M. Ronquest ,G. K. Giovanetti ,S. MacMullin,D. C. Combs ,C. D. Christofferson ,M. Boswell,H. Ejiri,D. C. Radford ,E. Yakushev,A. W. P. Poon ,B. Shanks ,L. E. Leviner ,A. M. Suriano ,S. Mertens ,F. E. Bertrand ,W. Tornow,A. Soin ,R. Henning,A. Caldwell ,Nicole Overman ,K. J. Snavely ,N. Abgrall ,F. M. Fraenkle ,A. R. Young ,J. Leon,V. E. Guiseppe ,E. Aguayo,J. F. Wilkerson ,R. G. H. Robertson ,R. L. Varner ,J. Strain,C. O’shaughnessy ,С. И. Коновалов ,C.‐H. Yu ,M. P. Green ,M. Shirchenko,V. Yumatov,O. Kochetov,P. Finnerty,J. L. Orrell ,E. W. Hoppe ,K. Vetter,A. L. Hallin ,T. Shima,M. Busch,B. R. White ,K. Pushkin ,S. Howard,P. J. Doe ,K. Vorren,A. S. Barabash ,J. Gruszko ,Richard T. Kouzes ,V. Egorov,F. T. Avignone ,A. Hegai ,N. Snyder ,K. Rielage,M. A. Howe ,S. R. Elliott ,R. D. Martin ,J. C. Loach

doi:10.1063/1.3700592

The Majorana Demonstrator: A search for neutrinoless double-beta decay of germanium-76

J. Esterline, J. A. Detwiler

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https://doi.org/10.1063/1.3700592

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Publication Date: Jan 1, 2012

Affiliation: Duke University, University of Washington, Los Alamos National Laboratory, Pacific Northwest National Laboratory, Joint Institute for Nuclear Research, University of Tennessee at Knoxville, Black Hills State University, Osaka University, Tennessee Technological University, Oak Ridge National Laboratory, North Carolina State University, Lawrence Berkeley National Laboratory, University of North Carolina at Chapel Hill, South Dakota School of Mines and Technology, University of Alberta, University of South Dakota, University of California, Berkeley, University of South Carolina, Shanghai Jiao Tong University

#Search For Neutrinoless Double-beta Decay #Double-beta Decay + Show 8 more

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Abstract

The observation of neutrinoless double-beta decay would determine whether the neutrino is a Majorana particle and provide information on the absolute scale of neutrino mass. The Majorana Collaboration is constructing the Demonstrator, an array of germanium detectors, to search for neutrinoless double-beta decay of 76Ge. The Demonstrator will contain 40kg of germanium; up to 30kg will be enriched to 86% in 76Ge. The Demonstrator will be deployed deep underground in an ultra-low-background shielded environment. Operation of the Demonstrator aims to determine whether a future tonne-scale germanium experiment can achieve a background goal of one count per tonne-year in a 4-keV region of interest around the 76Ge neutrinoless double-beta decay Q-value of 2039 keV.

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