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Combined limits on WIMPs from the CDMS and EDELWEISS experiments

Ahmed, Z. and Filippini, J. and Golwala, S. R. and Moore, D. (2011) Combined limits on WIMPs from the CDMS and EDELWEISS experiments. Physical Review D, 84 (1). Art. No. 011102. ISSN 2470-0010.

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The CDMS and EDELWEISS collaborations have combined the results of their direct searches for dark matter using cryogenic germanium detectors. The total data set represents 614  kg·days equivalent exposure. A straightforward method of combination was chosen for its simplicity before data were exchanged between experiments. The results are interpreted in terms of limits on spin-independent weakly interacting, massive particle (WIMP)-nucleon cross section. For a WIMP mass of 90  GeV/c^2, where this analysis is most sensitive, a cross section of 3.3×10^(-44)  cm^2 is excluded at 90% C.L. At higher WIMP masses, the combination improves the individual limits, by a factor 1.6 above 700  GeV/c^2. Alternative methods of combining the data provide stronger constraints for some ranges of WIMP masses and weaker constraints for others.

Item Type:Article
Related URLs:
URLURL TypeDescription
Filippini, J.0000-0001-8217-6832
Golwala, S. R.0000-0002-1098-7174
Additional Information:© 2011 American Physical Society. Received 18 May 2011; published 6 July 2011. This work is supported in part by the National Science Foundation under Grant Nos. AST-9978911, PHY-0542066, PHY-0503729, PHY-0503629, PHY-0503641, PHY-0504224, PHY-0705052, PHY-0801708, PHY-0801712, PHY-0802575, and PHY-0855525, by NSERC Canada under Grant No. SAPPJ 386399, by the Department of Energy under Contract Nos. DE-AC03-76SF00098, DE-FG02-91ER40688, DE-FG02-92ER40701, DE-FG03-90ER40569, and DE-FG03-91ER40618), by the Swiss National Foundation (SNF) under Grant No. 20-118119, by the Agence Nationale pour la Recherche under Contract No. ANR-06-BLAN-0376-01, by the Russian Foundation for Basic Research, and by the Science and Technology Facilities Council, UK.
Funding AgencyGrant Number
Natural Sciences and Engineering Research Council of Canada (NSERC)SAPPJ 386399
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
Agence Nationale de la Recherche (ANR)ANR-06-BLAN-0376-01
Science and Technology Facilities Council (STFC)UNSPECIFIED
Russian Foundation for Basic ResearchUNSPECIFIED
Issue or Number:1
Classification Code:PACS: 95.35.+d, 14.80.Ly, 29.40.Wk, 98.80.Es
Record Number:CaltechAUTHORS:20110722-144254403
Persistent URL:
Official Citation:Combined limits on WIMPs from the CDMS and EDELWEISS experiments Z. Ahmed et al. (The CDMS and EDELWEISS Collaborations) Published 6 July 2011 (5 pages) 011102
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24512
Deposited By: Ruth Sustaita
Deposited On:22 Jul 2011 22:33
Last Modified:10 Dec 2019 00:08

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