Signal yields of keV electronic recoils and their discrimination from nuclear recoils in liquid xenon

被引：31

作者：

Aprile, E. ^{[1
]}

Aalbers, J. ^{[2
,3
]}

Agostini, F. ^{[4
,5
,6
,7
]}

Alfonsi, M. ^{[8
]}

Amaro, F. D. ^{[9
]}

Anthony, M. ^{[1
]}

Arneodo, F. ^{[10
]}

Barrow, P. ^{[11
]}

Baudis, L. ^{[11
]}

Bauermeister, B. ^{[12
]}

Benabderrahmane, M. L. ^{[10
]}

Berger, T. ^{[13
]}

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

Brown, A. ^{[2
,3
]}

Brown, E. ^{[13
]}

Bruenner, S. ^{[14
]}

Bruno, G. ^{[4
,5
,10
]}

Budnik, R. ^{[15
]}

Buetikofer, L. ^{[16
,28
]}

Calven, J. ^{[12
]}

Cardoso, J. M. R. ^{[9
]}

Cervantes, M. ^{[17
]}

Cichon, D. ^{[14
]}

Coderre, D. ^{[16
]}

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

Conrad, J. ^{[12
]}

Cussonneau, J. P. ^{[18
]}

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

de Perio, P. ^{[1
]}

Di Gangi, P. ^{[6
,7
]}

Di Giovanni, A. ^{[10
]}

Diglio, S. ^{[18
]}

Eurin, G. ^{[14
]}

Fei, J. ^{[19
]}

Ferella, A. D. ^{[12
]}

Fieguth, A. ^{[20
]}

Fulgione, W. ^{[4
,5
,21
,22
]}

Rosso, A. Gallo ^{[4
,5
]}

Galloway, M. ^{[8
]}

Gao, F. ^{[1
]}

Garbini, M. ^{[6
,7
]}

Geis, C. ^{[8
]}

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

Grandi, L. ^{[23
,24
]}

Greene, Z. ^{[1
]}

Grignon, C. ^{[8
]}

Hasterok, C. ^{[14
]}

Hogenbirk, E. ^{[2
,3
]}

Howlett, J. ^{[1
]}

Itay, R. ^{[15
]}

机构：

[1] Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA

[2] Nikhef, Sci Pk, NL-1098 XG Amsterdam, Netherlands

[3] Univ Amsterdam, Sci Pk, NL-1098 XG Amsterdam, Netherlands

[4] INFN, Lab Nazl Gran Sasso, I-67100 Laquila, Italy

[5] Gran Sasso Sci Inst, I-67100 Laquila, Italy

[6] Univ Bologna, Dept Phys & Astron, I-40126 Bologna, Italy

[7] INFN Bologna, I-40126 Bologna, Italy

[8] Johannes Gutenberg Univ Mainz, Inst Phys & Exzellenzcluster PRISMA, D-55099 Mainz, Germany

[9] Univ Coimbra, Dept Phys, LIBPhys, P-3004516 Coimbra, Portugal

[10] New York Univ Abu Dhabi, Abu Dhabi, U Arab Emirates

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

[12] Stockholm Univ, AlbaNova, Dept Phys, Oskar Klein Ctr, SE-10691 Stockholm, Sweden

[13] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA

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

[15] Weizmann Inst Sci, Dept Particle Phys & Astrophys, IL-7610001 Rehovot, Israel

[16] Univ Freiburg, Phys Inst, D-79104 Freiburg, Germany

[17] Purdue Univ, Dept Phys & Astron, W Lafayette, IN 47907 USA

[18] Univ Nantes, CNRS, IN2P3, SUBATECH,IMT Atlantique, F-44307 Nantes, France

[19] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

[20] Westfalische Wilhelms Univ Munster, Inst Kernphys, D-48149 Munster, Germany

[21] INFN Torino, I-10125 Turin, Italy

[22] Osserv Astron Torino, I-10125 Turin, Italy

[23] Univ Chicago, Dept Phys, Chicago, IL 60637 USA

[24] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA

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

[26] Univ Paris Diderot, Univ Pierre & Marie Curie, LPNHE, CNRS,IN2P3, F-75252 Paris, France

[27] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

[28] Univ Bern, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland

[29] Coimbra Polytech ISEC, Coimbra, Portugal

来源：

PHYSICAL REVIEW D | 2018年 / 97卷 / 09期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevD.97.092007

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report on the response of liquid xenon to low energy electronic recoils below 15 keV from beta decays of tritium at drift fields of 92 V/cm, 154 V/cm and 366 V/cm using the XENON100 detector. A data-to-simulation fitting method based on Markov Chain Monte Carlo is used to extract the photon yields and recombination fluctuations from the experimental data. The photon yields measured at the two lower fields are in agreement with those from literature; additional measurements at a higher field of 366 V/cm are presented. The electronic and nuclear recoil discrimination as well as its dependence on the drift field and photon detection efficiency are investigated at these low energies. The results provide new measurements in the energy region of interest for dark matter searches using liquid xenon.

引用

页数：11

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