Constraints on low-mass WIMP interactions on 19F from PICASSO

被引：195

作者：

Archambault, S. ^{[1
]}

Behnke, E. ^{[2
]}

Bhattacharjee, P. ^{[3
]}

Bhattacharya, S. ^{[3
]}

Dai, X. ^{[4
]}

Das, M. ^{[3
]}

Davour, A. ^{[4
]}

Debris, F. ^{[1
]}

Dhungana, N. ^{[5
]}

Farine, J. ^{[5
]}

Gagnebin, S. ^{[6
]}

Giroux, G. ^{[1
]}

Grace, E. ^{[2
]}

Jackson, C. M. ^{[1
]}

Kamaha, A. ^{[4
]}

Krauss, C. ^{[6
]}

Kumaratunga, S. ^{[1
]}

Lafreniere, M. ^{[1
]}

Laurin, M. ^{[1
]}

Lawson, I. ^{[7
]}

Lessard, L. ^{[1
]}

Levine, I.

Levy, C. ^{[4
]}

MacDonaldf', R. P. ^{[6
]}

Marlisov, D. ^{[6
]}

Martin, J. -P. ^{[1
]}

Mitra, P. ^{[6
]}

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

Piro, M. -C. ^{[1
]}

Podviyanuk, R. ^{[5
]}

Pospisil, S. ^{[8
]}

Saha, S. ^{[3
]}

Scallon, O. ^{[1
]}

Seth, S. ^{[3
]}

Starinski, N. ^{[1
]}

Stekl, I. ^{[8
]}

Wichoski, U. ^{[5
]}

Xie, T. ^{[4
]}

Zacek, V. ^{[1
]}

机构：

[1] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada

[2] Indiana Univ, Dept Phys & Astron, South Bend, IN 46634 USA

[3] Ctr AstroParticle Phys CAPP, Saha Inst Nucl Phys, Kolkata 700064, India

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

[5] Laurentian Univ, Dept Phys, Sudbury, ON P3E 2C6, Canada

[6] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada

[7] SNOLAB, Lively, ON P3Y 1N2, Canada

[8] Czech Tech Univ, Inst Expt & Appl Phys, CZ-12800 Prague, Czech Republic

来源：

PHYSICS LETTERS B | 2012年 / 711卷 / 02期

基金：

美国国家科学基金会; 加拿大创新基金会; 加拿大自然科学与工程研究理事会;

关键词：

Dark matter; WIMPs; Superheated droplets; SNOLAB; DARK-MATTER; DETECTORS; SEARCH;

D O I：

10.1016/j.physletb.2012.03.078

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recent results from the PICASSO dark matter search experiment at SNOLAB are reported. These results were obtained using a subset of 10 detectors with a total target mass of 0.72 kg of 19F and an exposure of 114 kgd. The low backgrounds in PICASSO allow recoil energy thresholds as low as 1.7 keV to be obtained which results in an increased sensitivity to interactions from Weakly Interacting Massive Particles (WIMPs) with masses below 10 GeV/c(2). No dark matter signal was found. Best exclusion limits in the spin dependent sector were obtained for WIMP masses of 20 GeV/c(2) with a cross section on protons of sigma(SD)(p) = 0.032 pb (90% CL.). In the spin independent sector close to the low mass region of 7 GeV/c(2) favoured by CoGeNT and DAMA/LIBRA, cross sections larger than sigma(SI)(p) = 1.41 x 10(-4) pb (90% C.L.) are excluded. 2012 Elsevier B.V. All rights reserved.

引用

页码：153 / 161

页数：9

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