Progress of CDMS-II at the Soudan Mine
Abstract
The Cryogenic Dark Matter Search (CDMS) has recently completed its first year of running in the deep site at the Soudan Underground Laboratory (2090 mwe). This year produced two distinct data sets: the first, Run 118, used the same four germanium and two silicon detectors as previous CDMS runs from the shallower Stanford site; while the second, Run 119, included two additional Ge detectors and four new Si detectors. The Run 118 data set, with 52.6 kg-days of Ge exposure before cuts, currently gives the world's best exclusion limit for spin-independent WIMP interactions: 4×10-43 cm2 for a WIMP mass of 60 GeV/c2 (90% confidence level). Run 119 provides 110 kg-days of Ge exposure before cuts. The blinded analysis of this data set is in progress, with an expected improvement in combined sensitivity of a factor of three.
- Publication:
-
22nd Texas Symposium on Relativistic Astrophysics
- Pub Date:
- 2005
- Bibcode:
- 2005tsra.conf..749O