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Status of the MAJORANA Demonstrator

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arxiv 1412.5682 v2 pith:LSL7BBLT submitted 2014-12-17 physics.ins-det nucl-ex

Status of the MAJORANA Demonstrator

C. Cuesta , N. Abgrall , I.J. Arnquist , F.T. Avignone III , A.S. Barabash , F.E. Bertrand , V. Brudanin , M. Busch
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M. Buuck D. Byram A.S. Caldwell Y-D. Chan C.D. Christofferson J.A. Detwiler Yu. Efremenko H. Ejiri S.R. Elliott A. Galindo-Uribarri G.K. Giovanetti J. Goett M.P. Greenn J. Gruszko I.S. Guinn V.E. Guiseppe R. Henning E.W. Hoppe S. Howard M.A. Howe B.R. Jasinski K.J. Keeter M.F. Kidd S.I. Konovalov R.T. Kouzes B.D. LaFerriere J. Leon J. MacMullin R.D. Martin S.J. Meijer S. Mertens J.L. Orrell C. O'Shaughnessy N.R. Overman A.W.P. Poon D.C. Radford J. Rager K. Rielage R.G.H. Robertson E. Romero-Romero C. Schmitt B. Shanks M. Shirchenko N. Snyder A.M. Suriano D. Tedeschi V. Timkin J.E. Trimble R.L. Varner S. Vasilyev K. Vetter K. Vorren B.R. White J.F. Wilkerson C. Wiseman W. Xu E. Yakushev C.-H. Yu V. Yumatov
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classification physics.ins-det nucl-ex
keywords demonstratormajoranabackgrounddecaydouble-betaneutrinolessregionstatus
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The MAJORANA Collaboration is constructing the MAJORANA Demonstrator, an ultra-low background, 40-kg modular high purity Ge detector array to search for neutrinoless double-beta decay in Ge. In view of the next generation of tonne-scale Ge-based neutrinoless double-beta decay searches that will probe the neutrino mass scale in the inverted-hierarchy region, a major goal of the Demonstrator is to demonstrate a path forward to achieving a background rate at or below 1 count/tonne/year in the 4 keV region of interest around the Q-value at 2039 keV. The current status of the Demonstrator is discussed, as are plans for its completion.

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