Publications [#225698] of Phillip S. Barbeau

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Papers Published
  1. Aalseth, CE; Barbeau, PS; Bowden, NS; Cabrera-Palmer, B; Colaresi, J; Collar, JI; Dazeley, S; de Lurgio, P; Fast, JE; Fields, N; Greenberg, CH; Hossbach, TW; Keillor, ME; Kephart, JD; Marino, MG; Miley, HS; Miller, ML; Orrell, JL; Radford, DC; Reyna, D; Tench, O; Van Wechel, TD; Wilkerson, JF; Yocum, KM; CoGeNT Collaboration, , Results from a search for light-mass dark matter with a p-type point contact germanium detector., Physical review letters, vol. 106 no. 13 (April, 2011), pp. 131301, American Physical Society (APS) [pdf], [doi] .

    Abstract:
    We report on several features in the energy spectrum from an ultralow-noise germanium detector operated deep underground. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for the first time. We discuss an irreducible excess of bulklike events below 3 keV in ionization energy. These could be caused by unknown backgrounds, but also dark matter interactions consistent with DAMA/LIBRA. It is not yet possible to determine their origin. Improved constraints are placed on a cosmological origin for the DAMA/LIBRA effect.

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