CDMS Soudan First Results and Status

Details CDMS Soudan First Results and Status CDMS Soudan First Results and Status

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005idm..conf..200d&link_type=abstract

THE IDENTIFICATION OF DARK MATTER. Proceedings of the Fifth International Workshop. Held 6-10 September 2004 in Edinburgh, UK. E

Computer Science

Scientific paper

The Cryogenic Dark Matter Search (CDMS) Collaboration reports the first results from operations at the Soudan Underground Laboratory. Six cryogenic ZIP detectors were operated to obtain, after analysis cuts, a 19.4 kg-d Ge exposure during the last few months of 2003. A blind analysis yielded no candidate WIMP (Weakly Interacting Massive Particles) interaction events, leading to 90% confidence level upper limits for spin-independent WIMP-nucleon cross section of 4×10-43 cm2 for a 60 GeV/c2 WIMP assuming a standard halo model. This limit places significant bounds on SUSY parameter space. The CDMS collaboration has a second, more extensive data set from 12 detectors under analysis and 18 additional detectors nearing completion for installation into Soudan during Fall 2004. Running during 2005 is expected to yield ~1000 kg-d Ge exposure before analysis cuts.

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