Low-threshold analysis of CDMS shallow-site data

被引：95

作者：

Akerib, D. S. ^{[4
]}

Attisha, M. J. ^{[2
]}

Baudis, L. ^{[21
]}

Bauer, D. A. ^{[5
]}

Bolozdynya, A. I. ^{[4
]}

Brink, P. L. ^{[11
]}

Bunker, R. ^{[1
]}

Cabrera, B. ^{[13
]}

Caldwell, D. O. ^{[1
]}

Chang, C. L. ^{[13
]}

Clarke, R. M. ^{[13
]}

Cooley, J. ^{[12
]}

Crisler, M. B. ^{[5
]}

Cushman, P. ^{[20
]}

DeJongh, F. ^{[5
]}

Dixon, R. ^{[5
]}

Driscoll, D. D. ^{[4
]}

Filippini, J. ^{[3
]}

Funkhouser, S. ^{[16
]}

Gaitskell, R. J. ^{[2
]}

Golwala, S. R. ^{[3
]}

Holmgren, D. ^{[5
]}

Hsu, L. ^{[5
]}

Huber, M. E. ^{[17
,18
]}

Kamat, S. ^{[4
]}

Mahapatra, R. ^{[15
]}

Mandic, V. ^{[20
]}

Meunier, P. ^{[16
]}

Mirabolfathi, N. ^{[16
]}

Moore, D. ^{[3
]}

Nam, S. W. ^{[13
]}

Nelson, H. ^{[1
]}

Ogburn, R. W. ^{[13
]}

Qiu, X. ^{[20
]}

Rau, W. ^{[9
]}

Reisetter, A. ^{[7
,20
]}

Saab, T. ^{[19
]}

Sadoulet, B. ^{[6
,16
]}

Sander, J. ^{[15
]}

Savage, C. ^{[1
]}

Schnee, R. W. ^{[14
]}

Seitz, D. N. ^{[16
]}

Shutt, T. A. ^{[8
]}

Wang, G. ^{[4
]}

Yellin, S. ^{[1
,13
]}

Yoo, J. ^{[5
]}

Young, B. A. ^{[10
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Brown Univ, Dept Phys, Providence, RI 02912 USA

[3] CALTECH, Div Phys Math & Astron, Pasadena, CA 91125 USA

[4] Case Western Reserve Univ, Dept Phys, Cleveland, OH 44106 USA

[5] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA

[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA

[7] St Olaf Coll, Dept Phys, Northfield, MN 55057 USA

[8] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[9] Queens Univ, Dept Phys, Kingston, ON K7L 3N6, Canada

[10] Santa Clara Univ, Dept Phys, Santa Clara, CA 95053 USA

[11] SLAC Natl Accelerator Lab KIPAC, Menlo Pk, CA 94025 USA

[12] So Methodist Univ, Dept Phys, Dallas, TX 75275 USA

[13] Stanford Univ, Dept Phys, Stanford, CA 94305 USA

[14] Syracuse Univ, Dept Phys, Syracuse, NY 13244 USA

[15] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[16] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[17] Univ Colorado, Dept Phys, Denver, CO 80217 USA

[18] Univ Colorado, Dept Elect Engn, Denver, CO 80217 USA

[19] Univ Florida, Dept Phys, Gainesville, FL 32611 USA

[20] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[21] Univ Zurich, Inst Phys, CH-8057 Zurich, Switzerland

来源：

PHYSICAL REVIEW D | 2010年 / 82卷 / 12期

基金：

加拿大自然科学与工程研究理事会; 美国国家科学基金会;

关键词：

LARGE-SCALE STRUCTURE; DARK-MATTER; EFFICIENCY; CRYSTAL; RAVE;

D O I：

10.1103/PhysRevD.82.122004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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 similar to 224 g germanium and two similar to 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 similar to 1 and similar to 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(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(2).

引用

页数：18

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