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Published March 30, 2011 | Version Supplemental Material + Published
Journal Article Open

Results from a Low-Energy Analysis of the CDMS II Germanium Data

Creators

Abstract

We report results from a reanalysis of data from the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory. Data taken between October 2006 and September 2008 using eight germanium detectors are reanalyzed with a lowered, 2 keV recoil-energy threshold, to give increased sensitivity to interactions from weakly interacting massive particles (WIMPs) with masses below ~10  GeV/c^2. This analysis provides stronger constraints than previous CDMS II results for WIMP masses below 9  GeV/c^2 and excludes parameter space associated with possible low-mass WIMP signals from the DAMA/LIBRA and CoGeNT experiments.

Additional Information

© 2011 American Physical Society. Received 24 November 2010; published 30 March 2011. The CDMS collaboration gratefully acknowledges the contributions of numerous engineers and technicians; we would like to especially thank Jim Beaty, Bruce Hines, Larry Novak, Richard Schmitt, and Astrid Tomada. In addition, we gratefully acknowledge assistance from the staff of the Soudan Underground Laboratory and the Minnesota Department of Natural Resources. This work is supported in part by the National Science Foundation (Grant Nos. AST-9978911, PHY-0542066, PHY-0503729, PHY-0503629, PHY-0503641, PHY- 0504224, PHY-0705052, PHY-0801708, PHY-0801712, PHY-0802575, PHY-0847342, and PHY-0855525), by the Department of Energy (Contracts DE-AC03-76SF00098, DE-FG02-91ER40688, DE-FG02-92ER40701, DE-FG03-90ER40569, and DE-FG03-91ER40618), by the Swiss National Foundation (SNF Grant No. 20-118119), and by NSERC Canada (Grant SAPIN 341314-07).

Attached Files

Published - Ahmed2011p13449Phys_Rev_Lett.pdf

Supplemental Material - README.TXT

Supplemental Material - detector_data.tar

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Ahmed2011p13449Phys_Rev_Lett.pdf

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Additional details

Identifiers

Eprint ID
23376
Resolver ID
CaltechAUTHORS:20110419-092711120

Funding

NSF
AST-9978911
NSF
PHY-0542066
NSF
PHY-0503729
NSF
PHY-0503629
NSF
PHY-0503641
NSF
PHY-0504224
NSF
PHY-0705052
NSF
PHY-0801708
NSF
PHY-0801712
NSF
PHY-0802575
NSF
PHY-0847342
NSF
PHY-0855525
Department of Energy (DOE)
DE-AC03-76SF00098
Department of Energy (DOE)
DE-FG02-91ER40688
Department of Energy (DOE)
DE-FG02-92ER40701
Department of Energy (DOE)
DE-FG03-90ER40569
Department of Energy (DOE)
DE-FG03-91ER40618
Swiss National Foundation (SNF)
20-118119
Natural Sciences and Engineering Research Council of Canada (NSERC)
SAPIN 341314-07

Dates

Created
2011-04-21
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field

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