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Silicon detector results from the first five-tower run of CDMS II

R. Agnese et al. (CDMS Collaboration)
Phys. Rev. D 88, 031104(R) – Published 27 August 2013; Erratum Phys. Rev. D 88, 059901 (2013)

Abstract

We report results of a search for weakly interacting massive particles (WIMPs) with the Si detectors of the CDMS II experiment. This report describes a blind analysis of the first data taken with CDMS II’s full complement of detectors in 2006–2007; results from this exposure using the Ge detectors have already been presented. We observed no candidate WIMP-scattering events in an exposure of 55.9 kg-days before analysis cuts, with an expected background of 1.1 events. The exposure of this analysis is equivalent to 10.3 kg-days over a recoil energy range of 7–100 keV for an ideal Si detector and a WIMP mass of 10GeV/c2. These data set an upper limit of 1.7×1041cm2 on the WIMP-nucleon spin-independent cross section of a 10GeV/c2 WIMP. These data exclude parameter space for spin-independent WIMP-nucleon elastic scattering that is relevant to recent searches for low-mass WIMPs.

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  • Received 15 April 2013
  • Publisher error corrected 3 September 2013

DOI:https://doi.org/10.1103/PhysRevD.88.031104

© 2013 American Physical Society

Corrections

3 September 2013

Erratum

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Vol. 88, Iss. 3 — 1 August 2013

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