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Title: A Low-threshold Analysis of CDMS Shallow-site Data

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 {approx}224 g germanium and two {approx}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 {approx}1 and {approx}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{sup 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{sup 2}.

Authors:
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Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1042683
Report Number(s):
SLAC-PUB-15053
Journal ID: ISSN 1550-7998; arXiv:1010.4290; TRN: US201212%%886
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 82; Journal Issue: 12; Journal ID: ISSN 1550-7998
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CROSS SECTIONS; CRYOGENICS; GERMANIUM; NONLUMINOUS MATTER; NUCLEI; SENSITIVITY; SILICON; Astrophysics, Experiment-HEP,HEPEX, ASTRO

Citation Formats

Akerib, D S, /Case Western Reserve U., Attisha, M J, /Brown U., Baudis, L, /Zurich-Irchel U., Bauer, D A, /Fermilab, Bolozdynya, A I, /Case Western Reserve U., Brink, P L, /SLAC, Bunker, R, /UC, Santa Barbara, Cabrera, B, /Stanford U., Phys. Dept., Caldwell, D O, /UC, Santa Barbara, Chang, C L, /Stanford U., Phys. Dept., Clarke, R M, /Stanford U., Phys. Dept., Cooley, J, /Southern Methodist U., Crisler, M B, /Fermilab, Cushman, P, /Minnesota U., DeJongh, F, /Fermilab, Dixon, R, /Fermilab, Driscoll, D D, /Case Western Reserve U., Filippini, J, /Caltech, Funkhouser, S, /UC, Berkeley, Gaitskell, R J, /Brown U., Golwala, S R, and /Caltech /Fermilab /Fermilab /Colorado U., Denver /Case Western Reserve U. /Texas A-M /Minnesota U. /UC, Berkeley /UC, Berkeley /Caltech /Stanford U., Phys. Dept. /UC, Santa Barbara /Stanford U., Phys. Dept. /Minnesota U. /Queen's U., Kingston /Minnesota U. /St. Olaf Coll. /Florida U. /LBL, Berkeley /UC, Berkeley /Texas A-M /UC, Santa Barbara /Syracuse U. /UC, Berkeley /Princeton U. /Case Western Reserve U. /Stanford U., Phys. Dept. /UC, Santa Barbara /Fermilab /Santa Clara U. A Low-threshold Analysis of CDMS Shallow-site Data. United States: N. p., 2012. Web.
Akerib, D S, /Case Western Reserve U., Attisha, M J, /Brown U., Baudis, L, /Zurich-Irchel U., Bauer, D A, /Fermilab, Bolozdynya, A I, /Case Western Reserve U., Brink, P L, /SLAC, Bunker, R, /UC, Santa Barbara, Cabrera, B, /Stanford U., Phys. Dept., Caldwell, D O, /UC, Santa Barbara, Chang, C L, /Stanford U., Phys. Dept., Clarke, R M, /Stanford U., Phys. Dept., Cooley, J, /Southern Methodist U., Crisler, M B, /Fermilab, Cushman, P, /Minnesota U., DeJongh, F, /Fermilab, Dixon, R, /Fermilab, Driscoll, D D, /Case Western Reserve U., Filippini, J, /Caltech, Funkhouser, S, /UC, Berkeley, Gaitskell, R J, /Brown U., Golwala, S R, & /Caltech /Fermilab /Fermilab /Colorado U., Denver /Case Western Reserve U. /Texas A-M /Minnesota U. /UC, Berkeley /UC, Berkeley /Caltech /Stanford U., Phys. Dept. /UC, Santa Barbara /Stanford U., Phys. Dept. /Minnesota U. /Queen's U., Kingston /Minnesota U. /St. Olaf Coll. /Florida U. /LBL, Berkeley /UC, Berkeley /Texas A-M /UC, Santa Barbara /Syracuse U. /UC, Berkeley /Princeton U. /Case Western Reserve U. /Stanford U., Phys. Dept. /UC, Santa Barbara /Fermilab /Santa Clara U. A Low-threshold Analysis of CDMS Shallow-site Data. United States.
Akerib, D S, /Case Western Reserve U., Attisha, M J, /Brown U., Baudis, L, /Zurich-Irchel U., Bauer, D A, /Fermilab, Bolozdynya, A I, /Case Western Reserve U., Brink, P L, /SLAC, Bunker, R, /UC, Santa Barbara, Cabrera, B, /Stanford U., Phys. Dept., Caldwell, D O, /UC, Santa Barbara, Chang, C L, /Stanford U., Phys. Dept., Clarke, R M, /Stanford U., Phys. Dept., Cooley, J, /Southern Methodist U., Crisler, M B, /Fermilab, Cushman, P, /Minnesota U., DeJongh, F, /Fermilab, Dixon, R, /Fermilab, Driscoll, D D, /Case Western Reserve U., Filippini, J, /Caltech, Funkhouser, S, /UC, Berkeley, Gaitskell, R J, /Brown U., Golwala, S R, and /Caltech /Fermilab /Fermilab /Colorado U., Denver /Case Western Reserve U. /Texas A-M /Minnesota U. /UC, Berkeley /UC, Berkeley /Caltech /Stanford U., Phys. Dept. /UC, Santa Barbara /Stanford U., Phys. Dept. /Minnesota U. /Queen's U., Kingston /Minnesota U. /St. Olaf Coll. /Florida U. /LBL, Berkeley /UC, Berkeley /Texas A-M /UC, Santa Barbara /Syracuse U. /UC, Berkeley /Princeton U. /Case Western Reserve U. /Stanford U., Phys. Dept. /UC, Santa Barbara /Fermilab /Santa Clara U. 2012. "A Low-threshold Analysis of CDMS Shallow-site Data". United States. https://www.osti.gov/servlets/purl/1042683.
@article{osti_1042683,
title = {A Low-threshold Analysis of CDMS Shallow-site Data},
author = {Akerib, D S and /Case Western Reserve U. and Attisha, M J and /Brown U. and Baudis, L and /Zurich-Irchel U. and Bauer, D A and /Fermilab and Bolozdynya, A I and /Case Western Reserve U. and Brink, P L and /SLAC and Bunker, R and /UC, Santa Barbara and Cabrera, B and /Stanford U., Phys. Dept. and Caldwell, D O and /UC, Santa Barbara and Chang, C L and /Stanford U., Phys. Dept. and Clarke, R M and /Stanford U., Phys. Dept. and Cooley, J and /Southern Methodist U. and Crisler, M B and /Fermilab and Cushman, P and /Minnesota U. and DeJongh, F and /Fermilab and Dixon, R and /Fermilab and Driscoll, D D and /Case Western Reserve U. and Filippini, J and /Caltech and Funkhouser, S and /UC, Berkeley and Gaitskell, R J and /Brown U. and Golwala, S R and /Caltech /Fermilab /Fermilab /Colorado U., Denver /Case Western Reserve U. /Texas A-M /Minnesota U. /UC, Berkeley /UC, Berkeley /Caltech /Stanford U., Phys. Dept. /UC, Santa Barbara /Stanford U., Phys. Dept. /Minnesota U. /Queen's U., Kingston /Minnesota U. /St. Olaf Coll. /Florida U. /LBL, Berkeley /UC, Berkeley /Texas A-M /UC, Santa Barbara /Syracuse U. /UC, Berkeley /Princeton U. /Case Western Reserve U. /Stanford U., Phys. Dept. /UC, Santa Barbara /Fermilab /Santa Clara U.},
abstractNote = {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 {approx}224 g germanium and two {approx}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 {approx}1 and {approx}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{sup 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{sup 2}.},
doi = {},
url = {https://www.osti.gov/biblio/1042683}, journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
issn = {1550-7998},
number = 12,
volume = 82,
place = {United States},
year = {2012},
month = {6}
}