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arXiv:1503.06241 (physics)
[Submitted on 20 Mar 2015 (v1), last revised 16 Jul 2015 (this version, v2)]

Title:Investigation of radioactivity-induced backgrounds in EXO-200

Authors:J.B. Albert, D.J. Auty, P.S. Barbeau, D. Beck, V. Belov, C. Benitez-Medina, M. Breidenbach, T. Brunner, A. Burenkov, G.F. Cao, C. Chambers, B. Cleveland, M. Coon, A. Craycraft, T. Daniels, M. Danilov, S.J. Daugherty, C.G. Davis, J. Davis, S. Delaquis, A. Der Mesrobian-Kabakian, R. DeVoe, T. Didberidze, A. Dolgolenko, M.J. Dolinski, M. Dunford, W. Fairbank Jr., J. Farine, W. Feldmeier, P. Fierlinger, D. Fudenberg, G. Giroux, R. Gornea, K. Graham, G. Gratta, C. Hall, S. Herrin, M. Hughes, M.J. Jewell, X.S. Jiang, A. Johnson, T.N. Johnson, S. Johnston, A. Karelin, L.J. Kaufman, R. Killick, T. Koffas, S. Kravitz, A. Kuchenkov, K.S. Kumar, D.S. Leonard, C. Licciardi, Y.H. Lin, J. Ling, R. MacLellan, M.G. Marino, B. Mong, D. Moore, R. Nelson, A. Odian, I. Ostrovskiy, A. Piepke, A. Pocar, C.Y. Prescott, A. Rivas, P.C. Rowson, J.J. Russell, A. Schubert, D. Sinclair, E. Smith, V. Stekhanov, M. Tarka, T. Tolba, R. Tsang, K. Twelker, J.-L. Vuilleumier, A. Waite, J. Walton, T. Walton, M. Weber, L.J. Wen, U. Wichoski, J. Wood, L. Yang, Y.-R. Yen, O.Ya. Zeldovich
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Abstract:The search for neutrinoless double-beta decay (0{\nu}{\beta}{\beta}) requires extremely low background and a good understanding of their sources and their influence on the rate in the region of parameter space relevant to the 0{\nu}{\beta}{\beta} signal. We report on studies of various {\beta}- and {\gamma}-backgrounds in the liquid- xenon-based EXO-200 0{\nu}{\beta}{\beta} experiment. With this work we try to better understand the location and strength of specific background sources and compare the conclusions to radioassay results taken before and during detector construction. Finally, we discuss the implications of these studies for EXO-200 as well as for the next-generation, tonne-scale nEXO detector.
Comments: 9 pages, 7 figures, 3 tables
Subjects: Instrumentation and Detectors (physics.ins-det); High Energy Physics - Experiment (hep-ex); Nuclear Experiment (nucl-ex)
Cite as: arXiv:1503.06241 [physics.ins-det]
  (or arXiv:1503.06241v2 [physics.ins-det] for this version)
  https://doi.org/10.48550/arXiv.1503.06241
Journal reference: Phys. Rev. C 92 015503 (2015)
Related DOI: https://doi.org/10.1103/PhysRevC.92.015503

Submission history

From: Michael Marino [view email]
[v1] Fri, 20 Mar 2015 22:28:05 UTC (1,516 KB)
[v2] Thu, 16 Jul 2015 14:11:48 UTC (1,517 KB)
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