Observation and applications of single-electron charge signals in the XENON100 experiment

被引：81

作者：

Aprile, E. ^{[1
]}

Alfonsi, M. ^{[2
,3
]}

Arisaka, K. ^{[4
]}

Arneodo, F. ^{[5
]}

Balan, C. ^{[6
]}

Baudis, L. ^{[7
]}

Bauermeister, B. ^{[8
]}

Behrens, A. ^{[7
]}

Beltrame, P. ^{[4
,9
]}

Bokeloh, K. ^{[10
]}

Brown, A. ^{[11
]}

Brown, E. ^{[10
]}

Bruenner, S. ^{[12
]}

Bruno, G. ^{[5
]}

Budnik, R. ^{[1
]}

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

Chen, W-T ^{[13
]}

Choi, B. ^{[1
]}

Colijn, A. P. ^{[2
,3
]}

Contreras, H. ^{[1
]}

Cussonneau, J. P. ^{[13
]}

Decowski, M. P. ^{[2
,3
]}

Duchovni, E. ^{[9
]}

Fattori, S. ^{[8
]}

Ferella, A. D. ^{[5
,7
]}

Fulgione, W. ^{[14
,15
]}

Gao, F. ^{[16
]}

Garbini, M. ^{[17
,18
]}

Ghag, C. ^{[4
]}

Giboni, K-L ^{[1
]}

Goetzke, L. W. ^{[1
]}

Grignon, C. ^{[8
]}

Gross, E. ^{[9
]}

Hampel, W. ^{[12
]}

Itay, R. ^{[9
]}

Kaether, F. ^{[12
]}

Kessler, G. ^{[7
]}

Kish, A. ^{[7
]}

Lamblin, J. ^{[13
]}

Landsman, H. ^{[9
]}

Lang, R. F. ^{[11
]}

Le Calloch, M. ^{[13
]}

Levy, C. ^{[10
]}

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

Lin, Q. ^{[16
]}

Lindemann, S. ^{[12
]}

Lindner, M. ^{[12
]}

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

Lung, K. ^{[4
]}

Undagoitia, T. Marrodan ^{[7
,12
]}

机构：

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

[2] NIKHEF H, NL-1009 DB Amsterdam, Netherlands

[3] Univ Amsterdam, Amsterdam, Netherlands

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

[5] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Assergi, AQ, Italy

[6] Univ Coimbra, Dept Phys, Coimbra, Portugal

[7] Univ Zurich, Inst Phys, Zurich, Switzerland

[8] Johannes Gutenberg Univ Mainz, Inst Phys & Exzellenzcluster PRISMA, D-55122 Mainz, Germany

[9] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-76100 Rehovot, Israel

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

[11] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

[12] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[13] Univ Nantes, SUBATECH, Ecole Mines Nantes, CNRS,In2p3, Nantes, France

[14] INFN Torino, Turin, Italy

[15] Osservatorio Astrofis Torino, Turin, Italy

[16] Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200030, Peoples R China

[17] Univ Bologna, Bologna, Italy

[18] INFN Bologna, Bologna, Italy

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

[20] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2014年 / 41卷 / 03期

基金：

美国国家科学基金会;

关键词：

xenon; single electron; photoionization; double phase TPC; LIQUID ARGON; AR KR; TRANSPORT; O-2;

D O I：

10.1088/0954-3899/41/3/035201

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The XENON100 dark matter experiment uses liquid xenon in a time projection chamber (TPC) to measure xenon nuclear recoils resulting from the scattering of dark matter weakly interacting massive particles (WIMPs). In this paper, we report the observation of single-electron charge signals which are not related to WIMP interactions. These signals, which show the excellent sensitivity of the detector to small charge signals, are explained as being due to the photoionization of impurities in the liquid xenon and of the metal components inside the TPC. They are used as a unique calibration source to characterize the detector. We explain how we can infer crucial parameters for the XENON100 experiment: the secondary-scintillation gain, the extraction yield from the liquid to the gas phase and the electron drift velocity.

引用

页数：13

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