Radon-related Backgrounds in the LUX Dark Matter Search

A. Bradley, D. S. Akerib, H. M. Araújo, X. Bai, A. J. Bailey, J. Balajthy, E. Bernard, A. Bernstein, D. Byram, S. B. Cahn, M. C. Carmona-Benitez, C. Chan, J. J. Chapman, A. A. Chiller, C. Chiller, T. Coffey, A. Currie, L. De Viveiros, A. Dobi, J. DobsonE. Druszkiewicz, B. Edwards, C. H. Faham, S. Fiorucci, C. Flores, R. J. Gaitskell, V. M. Gehman, C. Ghag, K. R. Gibson, M. G.D. Gilchriese, C. Hall, S. A. Hertel, M. Horn, D. Q. Huang, M. Ihm, R. G. Jacobsen, K. Kazkaz, R. Knoche, N. A. Larsen, C. Lee, A. Lindote, M. I. Lopes, D. C. Malling, R. Mannino, D. N. McKinsey, D. M. Mei, J. Mock, M. Moongweluwan, J. Morad, A. St J. Murphy, C. Nehrkorn, H. Nelson, F. Neves, R. A. Ott, M. Pangilinan, P. D. Parker, E. K. Pease, K. Pech, P. Phelps, L. Reichhart, T. Shutt, C. Silva, V. N. Solovov, P. Sorensen, K. O'Sullivan, T. J. Sumner, M. Szydagis, D. Taylor, B. Tennyson, D. R. Tiedt, M. Tripathi, S. Uvarov, J. R. Verbus, N. Walsh, R. Webb, J. T. White, M. S. Witherell, F. L.H. Wolfs, M. Woods, C. Zhang

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6 Scopus citations

Abstract

The LUX detector is currently in operation at the Davis Campus at the 4850' level of the Sanford Underground Research Facility (SURF) in Lead, SD to directly search for WIMP dark matter. Knowing the type and rate of backgrounds is critical in a rare, low energy event search, and LUX was designed, constructed, and deployed to mitigate backgrounds, both internal and external. An important internal background are decays of radon and its daughters. These consist of alpha decays, which are easily tagged and are a tracer of certain backgrounds, and beta decays, some of which are not as readily tagged and present a background for the WIMP search. We report on studies of alpha decay and discuss implications for the WIMP search.

Original languageEnglish (US)
Pages (from-to)658-665
Number of pages8
JournalPhysics Procedia
Volume61
DOIs
StatePublished - 2015
Event13th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2013 - , United States
Duration: Sep 8 2013Sep 13 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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