First Dark Matter Results from the XENON100 Experiment

被引：308

作者：

Aprile, E. ^{[1
]}

Arisaka, K. ^{[2
]}

Arneodo, F. ^{[3
]}

Askin, A. ^{[4
]}

Baudis, L. ^{[4
]}

Behrens, A. ^{[4
]}

Bokeloh, K. ^{[6
]}

Brown, E. ^{[2
]}

Cardoso, J. M. R. ^{[5
]}

Choi, B. ^{[1
]}

Cline, D. B. ^{[2
]}

Fattori, S. ^{[3
]}

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

Giboni, K. -L. ^{[1
]}

Kish, A. ^{[4
]}

Lam, C. W. ^{[2
]}

Lamblin, J. ^{[7
]}

Lang, R. F. ^{[1
]}

Lim, K. E. ^{[1
]}

Lopes, J. A. M. ^{[5
]}

Undagoitia, T. Marrodan ^{[4
]}

Mei, Y. ^{[8
]}

Fernandez, A. J. Melgarejo ^{[1
]}

Ni, K. ^{[9
]}

Oberlack, U. ^{[8
]}

Orrigo, S. E. A. ^{[5
]}

Pantic, E. ^{[2
]}

Plante, G. ^{[1
]}

Ribeiro, A. C. C. ^{[5
]}

Santorelli, R. ^{[4
]}

dos Santos, J. M. F. ^{[5
]}

Schumann, M. ^{[4
,8
]}

Shagin, P. ^{[8
]}

Teymourian, A. ^{[2
]}

Thers, D. ^{[7
]}

Tziaferi, E. ^{[4
]}

Wang, H. ^{[2
]}

Weinheimer, C. ^{[6
]}

机构：

[1] Columbia Univ, Dept Phys, New York, NY 10027 USA

[2] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA USA

[3] INFN Lab Nazl Gran Sasso, I-67100 Assergi, Italy

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

[5] Univ Coimbra, Dept Phys, P-3004516 Coimbra, Portugal

[6] Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[7] Univ Nantes, SUBATECH, Ecole Mines Nantes, CNRS IN2P3, Nantes, France

[8] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA

[9] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 13期

基金：

美国国家科学基金会;

关键词：

SCINTILLATION EFFICIENCY; LIQUID XENON; RECOILS; ENERGY;

D O I：

10.1103/PhysRevLett.105.131302

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The XENON100 experiment, in operation at the Laboratori Nazionali del Gran Sasso in Italy, is designed to search for dark matter weakly interacting massive particles (WIMPs) scattering off 62 kg of liquid xenon in an ultralow background dual-phase time projection chamber. In this Letter, we present first dark matter results from the analysis of 11.17 live days of nonblind data, acquired in October and November 2009. In the selected fiducial target of 40 kg, and within the predefined signal region, we observe no events and hence exclude spin-independent WIMP-nucleon elastic scattering cross sections above 3.4 x 10(-44) cm(2) for 55 GeV/c(2) WIMPs at 90% confidence level. Below 20 GeV/c(2), this result constrains the interpretation of the CoGeNT and DAMA signals as being due to spin-independent, elastic, light mass WIMP interactions.

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