Study of the electromagnetic background in the XENON100 experiment

被引：67

作者：

Aprile, E. ^{[1
]}

Arisaka, K. ^{[2
]}

Arneodo, F. ^{[3
]}

Askin, A. ^{[4
]}

Baudis, L. ^{[4
]}

Behrens, A. ^{[4
]}

Bokeloh, K. ^{[5
]}

Brown, E. ^{[2
,5
]}

Cardoso, J. M. R. ^{[6
]}

Choi, B. ^{[1
]}

Cline, D. ^{[2
]}

Fattori, S. ^{[3
,7
]}

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

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

Kish, A. ^{[4
]}

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

Lamblin, J. ^{[8
]}

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

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

Lin, Q. ^{[9
]}

Lindemann, S. ^{[10
]}

Lindner, M. ^{[10
]}

Lopes, J. A. M. ^{[6
]}

Lung, K. ^{[2
]}

Undagoitia, T. Marrodan ^{[4
]}

Mei, Y. ^{[11
]}

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

Ni, K. ^{[9
]}

Oberlack, U. ^{[7
,11
]}

Orrigo, S. E. A. ^{[6
]}

Pantic, E. ^{[2
]}

Plante, G. ^{[1
]}

Ribeiro, A. C. C. ^{[6
]}

Santorelli, R. ^{[4
]}

dos Santos, J. M. F. ^{[6
]}

Schumann, M. ^{[4
,11
]}

Shagin, P. ^{[11
]}

Simgen, H. ^{[10
]}

Teymourian, A. ^{[2
]}

Thers, D. ^{[8
]}

Tziaferi, E. ^{[4
]}

Wang, H. ^{[2
]}

Weber, M. ^{[10
]}

Weinheimer, C. ^{[5
]}

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

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

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

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

[7] Johannes Gutenberg Univ Mainz, Inst Phys, D-55128 Mainz, Germany

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

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

[10] Max Planck Inst Nucl Phys, D-69117 Heidelberg, Germany

[11] Rice Univ, Dept Phys, Houston, TX 77005 USA

来源：

PHYSICAL REVIEW D | 2011年 / 83卷 / 08期

基金：

美国国家科学基金会;

关键词：

PARTIAL CROSS-SECTIONS; LIQUID; SCINTILLATION;

D O I：

10.1103/PhysRevD.83.082001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The XENON100 experiment, located at the Laboratori Nazionali del Gran Sasso, aims to directly detect dark matter in the form of weakly interacting massive particles via their elastic scattering off xenon nuclei. We present a comprehensive study of the predicted electronic recoil background coming from radioactive decays inside the detector and shield materials and intrinsic radioactivity in the liquid xenon. Based on GEANT4 Monte Carlo simulations using a detailed geometry together with the measured radioactivity of all detector components, we predict an electronic recoil background in the energy region of interest and 30 kg fiducial mass of less than 10(-2) events . kg(-1) . day(-1) . keV(-1), consistent with the experiment's design goal. The predicted background spectrum is in very good agreement with the data taken during the commissioning of the detector in Fall 2009.

引用

页数：10

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