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Search for inelastic dark matter with the CDMS II experiment

Ahmed, Z. and Filippini, J. and Golwala, S. R. and Moore, D. (2011) Search for inelastic dark matter with the CDMS II experiment. Physical Review D, 83 (11). Art. No. 112002. ISSN 2470-0010.

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Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory, with an exposure of 969 kg-days. The analysis window was extended to a recoil energy of 150 keV, and an improved surface-event background-rejection cut was defined to increase the sensitivity of the experiment to the inelastic dark matter (iDM) model. Three dark matter candidates were found between 25 keV and 150 keV. The probability to observe three or more background events in this energy range is 11%. Because of the occurrence of these events, the constraints on the iDM parameter space are slightly less stringent than those from our previous analysis, which used an energy window of 10–100 keV.

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 27 December 2010; revised 21 April 2011; published 1 June 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 and PHY-0855525), by the Department of Energy (Contract Nos. 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).
Funding AgencyGrant Number
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:11
Classification Code:PACS: 95.35.+d, 29.40.Wk, 95.30.-k, 95.30.Cq
Record Number:CaltechAUTHORS:20110620-091015212
Persistent URL:
Official Citation:Search for inelastic dark matter with the CDMS II experiment Z. Ahmed et al. (CDMS Collaboration) Published 1 June 2011 (10 pages) 112002
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24054
Deposited By: Ruth Sustaita
Deposited On:20 Jun 2011 16:45
Last Modified:10 Dec 2019 00:08

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