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

Ahmed, Z. and Filippini, J. and Golwala, S. R. and Moore, D. (2011) Results from a Low-Energy Analysis of the CDMS II Germanium Data. Physical Review Letters, 106 (13). Art. No. 131302. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:20110419-092711120

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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.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.106.131302 DOIArticle
http://prl.aps.org/abstract/PRL/v106/i13/e131302PublisherArticle
ORCID:
AuthorORCID
Golwala, S. R.0000-0002-1098-7174
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).
Group:Caltech Theory
Funders:
Funding AgencyGrant Number
NSFAST-9978911
NSFPHY-0542066
NSFPHY-0503729
NSFPHY-0503629
NSFPHY-0503641
NSFPHY-0504224
NSFPHY-0705052
NSFPHY-0801708
NSFPHY-0801712
NSFPHY-0802575
NSFPHY-0847342
NSFPHY-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
Classification Code:PACS: 95.35.+d, 14.80.Ly.
Record Number:CaltechAUTHORS:20110419-092711120
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20110419-092711120
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:23376
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Apr 2011 21:18
Last Modified:12 Dec 2016 00:13

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