Search for inelastic dark matter with the CDMS II experiment

被引：22

作者：

Ahmed, Z. ^{[2
]}

Akerib, D. S. ^{[3
]}

Arrenberg, S. ^{[1
]}

Bailey, C. N. ^{[3
]}

Balakishiyeva, D. ^{[18
]}

Baudis, L. ^{[1
]}

Bauer, D. A. ^{[4
]}

Brink, P. L. ^{[8
]}

Bruch, T. ^{[1
]}

Bunker, R. ^{[20
]}

Cabrera, B. ^{[12
]}

Caldwell, D. O. ^{[20
]}

Cooley, J. ^{[11
]}

do Couto e Silva, E. ^{[8
]}

Cushman, P. ^{[19
]}

Daal, M. ^{[15
]}

DeJongh, F. ^{[4
]}

Di Stefano, P. ^{[7
]}

Dragowsky, M. R. ^{[3
]}

Duong, L. ^{[19
]}

Fallows, S. ^{[19
]}

Figueroa-Feliciano, E. ^{[6
]}

Filippini, J. ^{[2
]}

Fox, J. ^{[7
]}

Fritts, M. ^{[19
]}

Golwala, S. R. ^{[2
]}

Hall, J. ^{[4
]}

Hennings-Yeomans, R. ^{[3
]}

Hertel, S. A. ^{[6
]}

Holmgren, D. ^{[4
]}

Hsu, L. ^{[4
]}

Huber, M. E. ^{[16
,17
]}

Kamaev, O. ^{[19
]}

Kiveni, M. ^{[13
]}

Kos, M. ^{[13
]}

Leman, S. W. ^{[6
]}

Liu, S. ^{[7
]}

Mahapatra, R. ^{[14
]}

Mandic, V. ^{[19
]}

McCarthy, K. A. ^{[6
]}

Mirabolfathi, N. ^{[15
]}

Moore, D. ^{[2
]}

Nelson, H. ^{[20
]}

Ogburn, R. W. ^{[12
]}

Phipps, A. ^{[15
]}

Pyle, M. ^{[12
]}

Qiu, X. ^{[19
]}

Ramberg, E. ^{[4
]}

Rau, W. ^{[7
]}

Razeti, M. ^{[12
]}

机构：

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

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

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

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

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

[6] MIT, Dept Phys, Cambridge, MA 02139 USA

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

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

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

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

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

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

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

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

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

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

[17] Univ Colorado, Dept Elec Engr, Denver, CO 80217 USA

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

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

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

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 11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：

LIMITS;

D O I：

10.1103/PhysRevD.83.112002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页数：10

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