CaltechAUTHORS
Published August 27, 2013 | Version Submitted + Published
Journal Article Open

Silicon detector results from the first five-tower run of CDMS II

Creators

Abstract

We report results of a search for weakly interacting massive particles (WIMPs) with the Si detectors of the CDMS II experiment. This report describes a blind analysis of the first data taken with CDMS II's full complement of detectors in 2006–2007; results from this exposure using the Ge detectors have already been presented. We observed no candidate WIMP-scattering events in an exposure of 55.9 kg-days before analysis cuts, with an expected background of ∼1.1 events. The exposure of this analysis is equivalent to 10.3 kg-days over a recoil energy range of 7–100 keV for an ideal Si detector and a WIMP mass of 10  GeV/c^2. These data set an upper limit of 1.7×10^(-41)  cm^2 on the WIMP-nucleon spin-independent cross section of a 10  GeV/c^2 WIMP. These data exclude parameter space for spin-independent WIMP-nucleon elastic scattering that is relevant to recent searches for low-mass WIMPs.

Additional Information

© 2013 American Physical Society. Received 15 April 2013; published 27 August 2013; publisher error corrected 3 September 2013. The CDMS Collaboration gratefully acknowledges the contributions of numerous engineers and technicians; we would like to especially thank Dennis Seitz, 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 (Grants No. AST-9978911, No. NSF-1102795, No. PHY-0847342, 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-0847342, No. PHY-0855299, No. PHY-0855525, No. PHY-1151869, and No. PHY-1205898), by the Department of Energy (Contracts No. DE-AC03-76SF00098, No. DE-FG02-92ER40701, No. DE-FG03-90ER40569, No. DE-FG03-91ER40618, and No. DE-SC0004022), by the Swiss National Foundation (SNF Grant No. 20-118119), by NSERC Canada (Grants No. SAPIN 341314 and No. SAPPJ 386399), and by MULTIDARK CSD2009-00064 and FPA2012-34694. Fermilab is operated by Fermi Research Alliance, LLC under Contract No. De-AC02-07CH11359, while SLAC is operated under Contract No. DE-AC02-76SF00515 with the U.S. Department of Energy.

Attached Files

Published - PhysRevD.88.031104.pdf

Submitted - 1304.3706v3.pdf

Files

1304.3706v3.pdf

Files (870.9 kB)

Name Size
md5:6c07f1649a8cbd1f3877e8a9971d99bb
351.8 kB Preview Download
md5:8e00dd25dca28efd701dd4f4b7eba170
519.1 kB Preview Download

Additional details

Identifiers

Eprint ID
41686
Resolver ID
CaltechAUTHORS:20131004-124407612

Related works

Describes
http://arxiv.org/abs/1304.3706 (URL)
http://link.aps.org/doi/10.1103/PhysRevD.88.059901 (URL)

Funding

NSF
AST-9978911
NSF
PHY-1102795
NSF
PHY-0847342
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-0847342
NSF
PHY-0855299
NSF
PHY-0855525
NSF
PHY-1151869
NSF
PHY-1205898
Department of Energy (DOE)
DE-AC03-76SF00098
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)
DE-SC0004022
Swiss National Science Foundation (SNSF)
20-118119
Natural Sciences and Engineering Research Council of Canada (NSERC)
SAPIN 341314
Natural Sciences and Engineering Research Council of Canada (NSERC)
SAPPJ 386399
MULTIDARK
CSD2009-00064
MULTIDARK
FPA2012-34694
Department of Energy (DOE)
DE-AC02-07CH11359
Department of Energy (DOE)
DE-AC02-76SF00515

Dates

Created
2013-10-04
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field