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19 April 2024

» arxiv » 1109.1567

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The MAJORANA DEMONSTRATOR: A Search for Neutrinoless Double-beta Decay of Germanium-76
MAJORANA Collaboration ; A.G. Schubert ; E. Aguayo ; F.T. Avignone III ; H.O. Back ; A.S. Barabash ; M. Bergevin ; F.E. Bertrand ; M. Boswell ; V. Brudanin ; M. Busch ; Y-D. Chan ; C.D. Christofferson ; J.I. Collar ; D.C. Combs ; R.J. Cooper ; J.A. Detwiler ; J. Leon ; P.J. Doe ; Yu. Efremenko ; V. Egorov ; H. Ejiri ; S.R. Elliott ; J. Esterline ; J.E. Fast ; N. Fields ; P. Finnerty ; F.M. Fraenkle ; V.M. Gehman ; G.K. Giovanetti ; M.P. Green ; V.E. Guiseppe ; K. Gusey ; A.L. Hallin ; R. Hazama ; R. Henning ; A. Hime ; E.W. Hoppe ; M. Horton ; S. Howard ; M.A. Howe ; R.A. Johnson ; K.J. Keeter ; M.E. Keillor ; C. Keller ; J.D. Kephart ; M.F. Kidd ; A. Knecht ; O. Kochetov ; S.I. Konovalov ; R.T. Kouzes ; B. LaFerriere ; B.H. LaRoque ; L.E. Leviner ; J.C. Loach ; S. MacMullin ; M.G. Marino ; R.D. Martin ; D.-M. Mei ; J. Merriman ; M.L. Miller ; L. Mizouni ; M. Nomachi ; J.L. Orrell ; N. Overman ; D.G. Phillips II ; A.W.P. Poon ; G. Perumpilly ; G. Prior ; D.C. Radford ; K. Rielage ; R.G.H. Robertson ; M.C. Ronquest ; T. Shima ; M. Shirchenko ; K.J. Snavely ; V. Sobolev ; D. Steele ; J. Strain ; K. Thomas ; V. Timkin ; W. Tornow ; I. Vanyushin ; R.L. Varner ; K. Vetter ; K. Vorren ; J.F. Wilkerson ; B.A. Wolfe ; E. Yakushev ; A.R. Young ; C.?H. Yu ; V. Yumatov ; C. Zhan ;
Date:	7 Sep 2011
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 76-Ge. The DEMONSTRATOR will contain 40 kg of germanium; up to 30 kg will be enriched to 86% in 76-Ge. 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 76-Ge neutrinoless double-beta decay Q-value of 2039 keV.
Source:	arXiv, 1109.1567
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