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Low-threshold analysis of CDMS shallow-site data

Akerib, D. S. and Filippini, J. and Golwala, S. R. and Moore, D. (2010) Low-threshold analysis of CDMS shallow-site data. Physical Review D, 82 (12). Art. No. 122004. ISSN 2470-0010. doi:10.1103/PhysRevD.82.122004. https://resolver.caltech.edu/CaltechAUTHORS:20110315-091121882

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Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20110315-091121882

Abstract

Data taken during the final shallow-site run of the first tower of the Cryogenic Dark Matter Search (CDMS II) detectors have been reanalyzed with improved sensitivity to small energy depositions. Four ~224 g germanium and two ~105 g silicon detectors were operated at the Stanford Underground Facility (SUF) between December 2001 and June 2002, yielding 118 live days of raw exposure. Three of the germanium and both silicon detectors were analyzed with a new low-threshold technique, making it possible to lower the germanium and silicon analysis thresholds down to the actual trigger thresholds of ~1 and ~2 keV, respectively. Limits on the spin-independent cross section for weakly interacting massive particles (WIMPs) to elastically scatter from nuclei based on these data exclude interesting parameter space for WIMPs with masses below 9 GeV/c^2. Under standard halo assumptions, these data partially exclude parameter space favored by interpretations of the DAMA/LIBRA and CoGeNT experiments’ data as WIMP signals, and exclude new parameter space for WIMP masses between 3 and 4 GeV/c^2.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevD.82.122004DOIArticle
http://prd.aps.org/abstract/PRD/v82/i12/e122004PublisherArticle
http://link.aps.org/doi/10.1103/PhysRevD.82.122004PublisherArticle
ORCID:
AuthorORCID
Filippini, J.0000-0001-8217-6832
Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2010 American Physical Society. Received 22 October 2010; published 22 December 2010. The CDMS Collaboration gratefully acknowledges the contributions of numerous engineers and technicians. We would like to especially thank Judith Alvaro-Dean, Jim Beaty, Sam Burke, Daniel Callahan, Pat Castle, John Emes, Merle Haldeman, David Hale, Michael Hennessey, Wayne Johnson, Jim Perales, Garth Smith, and Astrid Tomada. Additionally, we would like to thank former CDMS collaborators for their contributions to the successful completion of this work, including Long Duong, Jochen Hellmig, Al Lu, John Martinis, Thushara Perera, Maria Perillo Isaac, Ron Ross, Tony Spadafora, and John-Paul Thompson. This work is supported in part by the National Science Foundation (Grants No. AST-9978911, No. PHY-0542066, No. PHY-0503729, No. PHY-0503629, No. PHY-0503641, No. PHY-0504224, No. PHY-0705052, No. PHY-0801708, No. PHY-0801712, No. PHY-0802575, No. PHY-0855525, and No. PHY-9722414), by the Department of Energy (Contracts No. DE-AC03-76SF00098, No. DE-FG02-91ER40688, No. DE-FG02-92ER40701, No. DE-FG03-90ER40569, and No. DE-FG03-91ER40618), by the Swiss National Foundation (SNF Grant No. 20-118119), and by NSERC Canada (Grant No. 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-0855525
NSFPHY-9722414
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 Science Foundation (SNSF)20-118119
Natural Sciences and Engineering Research Council of Canada (NSERC)SAPIN 341314-07
Issue or Number:12
Classification Code:PACS: 95.35.+d, 14.80.Ly, 29.40.Wk, 95.30.Cq
DOI:10.1103/PhysRevD.82.122004
Record Number:CaltechAUTHORS:20110315-091121882
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20110315-091121882
Official Citation:Low-threshold analysis of CDMS shallow-site data D. S. Akerib et al. (CDMS Collaboration) Published 22 December 2010 (18 pages) 122004
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22881
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Mar 2011 20:53
Last Modified:09 Nov 2021 16:09

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