First Results from the LUX Dark Matter Experiment at the Sanford Underground Research Facility

被引：1246

作者：

Akerib, D. S. ^{[2
]}

Araujo, H. M. ^{[4
]}

Bai, X. ^{[8
]}

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

Balajthy, J. ^{[16
]}

Bedikian, S. ^{[19
]}

Bernard, E. ^{[19
]}

Bernstein, A. ^{[6
]}

Bolozdynya, A. ^{[2
]}

Bradley, A. ^{[2
]}

Byram, D. ^{[18
]}

Cahn, S. B. ^{[19
]}

Carmona-Benitez, M. C. ^{[2
,14
]}

Chan, C. ^{[1
]}

Chapman, J. J. ^{[1
]}

Chiller, A. A. ^{[18
]}

Chiller, C. ^{[18
]}

Clark, K. ^{[2
]}

Coffey, T. ^{[2
]}

Currie, A. ^{[4
]}

Curioni, A. ^{[19
]}

Dazeley, S. ^{[6
]}

de Viveiros, L. ^{[7
]}

Dobi, A. ^{[16
]}

Dobson, J. ^{[15
]}

Dragowsky, E. M. ^{[2
]}

Druszkiewicz, E. ^{[17
]}

Edwards, B. ^{[19
]}

Faham, C. H. ^{[5
]}

Fiorucci, S. ^{[1
]}

Flores, C. ^{[13
]}

Gaitskell, R. J. ^{[1
]}

Gehman, V. M. ^{[5
]}

Ghag, C. ^{[11
]}

Gibson, K. R. ^{[2
]}

Gilchriese, M. G. D. ^{[5
]}

Hall, C. ^{[16
]}

Hanhardt, M. ^{[8
,9
]}

Hertel, S. A. ^{[19
]}

Horn, M. ^{[19
]}

Huang, D. Q. ^{[1
]}

Ihm, M. ^{[12
]}

Jacobsen, R. G. ^{[12
]}

Kastens, L. ^{[19
]}

Kazkaz, K. ^{[6
]}

Knoche, R. ^{[16
]}

Kyre, S. ^{[14
]}

Lander, R. ^{[13
]}

Larsen, N. A. ^{[19
]}

Lee, C. ^{[2
]}

机构：

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

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

[3] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

[4] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

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

[6] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[7] Univ Coimbra, LIP Coimbra, Dept Phys, P-3004516 Coimbra, Portugal

[8] South Dakota Sch Mines & Technol, Rapid City, SD 57701 USA

[9] Sanford Underground Res Facil, South Dakota Sci & Technol Author, Lead, SD 57754 USA

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

[11] UCL, Dept Phys & Astron, London WC1E 6BT, England

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

[13] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

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

[15] Univ Edinburgh, SUPA, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[16] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[17] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA

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

[19] Yale Univ, Dept Phys, New Haven, CT 06511 USA

来源：

PHYSICAL REVIEW LETTERS | 2014年 / 112卷 / 09期

基金：

美国国家科学基金会;

关键词：

LARGE-SCALE STRUCTURE;

D O I：

10.1103/PhysRevLett.112.091303

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Large Underground Xenon (LUX) experiment is a dual-phase xenon time-projection chamber operating at the Sanford Underground Research Facility (Lead, South Dakota). The LUX cryostat was filled for the first time in the underground laboratory in February 2013. We report results of the first WIMP search data set, taken during the period from April to August 2013, presenting the analysis of 85.3 live days of data with a fiducial volume of 118 kg. A profile-likelihood analysis technique shows our data to be consistent with the background-only hypothesis, allowing 90% confidence limits to be set on spin-independent WIMP-nucleon elastic scattering with a minimum upper limit on the cross section of 7.6 x 10(-46) cm(2) at a WIMP mass of 33 GeV= c(2). We find that the LUX data are in disagreement with low-mass WIMP signal interpretations of the results from several recent direct detection experiments.

引用

页数：7

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