Search for Low-Mass Weakly Interacting Massive Particles Using Voltage-Assisted Calorimetric Ionization Detection in the SuperCDMS Experiment

被引：231

作者：

Agnese, R. ^{[19
]}

Anderson, A. J. ^{[4
]}

Asai, M. ^{[8
]}

Balakishiyeva, D. ^{[19
]}

Thakur, R. Basu ^{[2
,20
]}

Bauer, D. A. ^{[2
]}

Billard, J. ^{[4
]}

Borgland, A. ^{[8
]}

Bowles, M. A. ^{[11
]}

Brandt, D. ^{[8
]}

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

Bunker, R. ^{[11
]}

Cabrera, B. ^{[10
]}

Caldwell, D. O. ^{[16
]}

Cerdeno, D. G. ^{[13
,14
]}

Chagani, H. ^{[21
]}

Cooley, J. ^{[9
]}

Cornell, B. ^{[1
]}

Crewdson, C. H. ^{[6
]}

Cushman, P. ^{[21
]}

Daal, M. ^{[15
]}

Di Stefano, P. C. F. ^{[6
]}

Doughty, T. ^{[15
]}

Esteban, L. ^{[13
,14
]}

Fallows, S. ^{[21
]}

Figueroa-Feliciano, E. ^{[4
]}

Godfrey, G. L. ^{[8
]}

Golwala, S. R. ^{[1
]}

Hall, J. ^{[5
]}

Harris, H. R. ^{[12
]}

Hertel, S. A. ^{[4
]}

Hofer, T. ^{[21
]}

Holmgren, D. ^{[2
]}

Hsu, L. ^{[2
]}

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

Jastram, A. ^{[12
]}

Kamaev, O. ^{[6
]}

Kara, B. ^{[9
]}

Kelsey, M. H. ^{[8
]}

Kennedy, A. ^{[21
]}

Kiveni, M. ^{[11
]}

Koch, K. ^{[21
]}

Loer, B. ^{[2
]}

Lopez Asamar, E. ^{[13
,14
]}

Mahapatra, R. ^{[12
]}

Mandic, V. ^{[21
]}

Martinez, C. ^{[6
]}

McCarthy, K. A. ^{[4
]}

Mirabolfathi, N. ^{[15
]}

Moffatt, R. A. ^{[10
]}

机构：

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

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

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA

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

[5] Pacific NW Natl Lab, Richland, WA 99352 USA

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

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

[8] Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA

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

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

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

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

[13] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain

[14] Univ Autonoma Madrid, Inst Fis Teor UAM CSIC, E-28049 Madrid, Spain

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

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

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

[18] Univ Evansville, Dept Phys, Evansville, IN 47722 USA

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

[20] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

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

[22] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 04期

基金：

美国国家科学基金会; 美国能源部; 加拿大自然科学与工程研究理事会;

关键词：

DARK-MATTER; AMPLIFICATION; EMISSION; CHARGE;

D O I：

10.1103/PhysRevLett.112.041302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

SuperCDMS is an experiment designed to directly detect weakly interacting massive particles (WIMPs), a favored candidate for dark matter ubiquitous in the Universe. In this Letter, we present WIMP-search results using a calorimetric technique we call CDMSlite, which relies on voltage-assisted Luke-Neganov amplification of the ionization energy deposited by particle interactions. The data were collected with a single 0.6 kg germanium detector running for ten live days at the Soudan Underground Laboratory. A low energy threshold of 170 eV(ee) (electron equivalent) was obtained, which allows us to constrain new WIMP-nucleon spin-independent parameter space for WIMP masses below 6 GeV/c(2).

引用

页数：6

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