Astronomy and Astrophysics – Astrophysics
Scientific paper
2005-09-09
Phys.Rev.Lett.96:011302,2006
Astronomy and Astrophysics
Astrophysics
4 pages, 4 figures, submitted to Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.96.011302
We report new results from the Cryogenic Dark Matter Search (CDMS II) at the Soudan Underground Laboratory. Two towers, each consisting of six detectors, were operated for 74.5 live days, giving spectrum-weighted exposures of 34 kg-d for germanium and 12 kg-d for silicon targets after cuts, averaged over recoil energies 10-100 keV for a WIMP mass of 60 GeV. A blind analysis was conducted, incorporating improved techniques for rejecting surface events. No WIMP signal exceeding expected backgrounds was observed. When combined with our previous results from Soudan, the 90% C.L. upper limit on the spin-independent WIMP-nucleon cross section is 1.6 x 10^{-43} cm^2 from Ge, and 3 x 10^{-42} cm^2 from Si, for a WIMP mass of 60 GeV. The combined limit from Ge (Si) is a factor of 2.5 (10) lower than our previous results, and constrains predictions of supersymmetric models.
No associations
LandOfFree
Limits on spin-independent WIMP-nucleon interactions from the two-tower run of the Cryogenic Dark Matter Search does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Limits on spin-independent WIMP-nucleon interactions from the two-tower run of the Cryogenic Dark Matter Search, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Limits on spin-independent WIMP-nucleon interactions from the two-tower run of the Cryogenic Dark Matter Search will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-465199