Combined limits on WIMPs from the CDMS and EDELWEISS experiments
Abstract
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.
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.Attached Files
Published - Ahmed2011p15150Phys_Rev_D.pdf
Supplemental Material - CDMS_EDELWEISS_suppl.zip
Supplemental Material - README.TXT
Files
Additional details
- Eprint ID
- 24512
- Resolver ID
- CaltechAUTHORS:20110722-144254403
- 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-0855525
- NSF
- SAPPJ 386399
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- 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
- Department of Energy (DOE)
- 20-118119
- Swiss National Science Foundation (SNSF)
- ANR-06-BLAN-0376-01
- Agence Nationale de la Recherche (ANR)
- Science and Technology Facilities Council (STFC)
- Russian Foundation for Basic Research
- Created
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2011-07-22Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field