Ref: http://arXiv.org/abs/astro-ph/0405033
Astrophysics, abstract
astro-ph/0405033
From: Richard Schnee [view email]
Date: Mon, 3 May 2004 17:56:44 GMT (113kb)
First Results from the Cryogenic Dark Matter Search in the Soudan Underground Lab
Authors: CDMS Collaboration
Comments: 4 pages, 5 figures, submitted to Phys. Rev. Lett
We report the first results from a search for weakly interacting
massive particles (WIMPs) in the Cryogenic Dark Matter Search
(CDMS) experiment at the Soudan Underground Laboratory. Four Ge and
two Si detectors were operated for 52.6 live days, providing 19.4
kg-d of Ge net exposure after cuts for recoil energies between
10-100 keV. A blind analysis was performed using only calibration
data to define the energy threshold and selection criteria for
nuclear-recoil candidates. These data set the world's lowest
exclusion limits on the coherent WIMP-nucleon scalar cross-section
for all WIMP masses above 15 GeV, ruling out a significant range of
neutralino supersymmetric models. The minimum of the limit curve at
the 90% C.L. is 4 x 10^{-43} cm^2 at a WIMP mass of 60 GeV.
See: http://arXiv.org/abs/astro-ph/0405033
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