Search for two-neutrino double electron capture of 124Xe with XENON100

被引：15

作者：

Aprile, E.

Aalbers, J. ^{[2
,6
,11
]}

Agostini, F. ^{[1
,3
]}

Alfonsi, M. ^{[4
]}

Amaro, F. D. ^{[5
,7
,19
]}

Anthony, M. ^{[8
,9
,15
]}

Arneodo, F.

Barrow, P. ^{[1
]}

Baudis, L.

Bauermeister, B. ^{[22
]}

Benabderrahmane, M. L. ^{[7
,9
]}

Berger, T. ^{[1
,8
,17
,19
]}

Breur, P. A. ^{[2
,9
]}

Brown, A. ^{[5
,8
]}

Brown, E.

Bruenner, S. ^{[17
,19
]}

Bruno, G. ^{[6
,11
]}

Budnik, R. ^{[5
,6
,15
]}

Butikofer, L. ^{[1
,7
,11
]}

Calven, J. ^{[8
]}

Cardoso, J. M. R. ^{[1
,4
,7
,19
]}

Cervantes, M.

Cichon, D. ^{[7
]}

Coderre, D. ^{[17
]}

Colijn, A. P.

Conrad, J.

Cussonneau, J. P. ^{[14
]}

Decowski, M. P. ^{[4
,15
,22
,23
]}

De Perio, P.

Di Gangi, P. ^{[1
,5
,24
]}

Di Giovanni, A. ^{[14
,15
,17
]}

Diglio, S. ^{[1
]}

Duchovni, E. ^{[7
]}

Fei, J. ^{[3
,14
]}

Ferella, A. D. ^{[9
]}

Fieguth, A. ^{[5
,8
,16
,19
]}

Franco, D. ^{[1
,2
,16
]}

Fulgione, W. ^{[6
,17
,23
]}

Rosso, A. Gallo ^{[7
,14
]}

Galloway, M. ^{[4
,5
,23
]}

Gao, F. ^{[3
,6
,8
]}

Garbini, M. ^{[1
,4
,17
]}

Geis, C. ^{[19
,21
,24
]}

Goetzke, L. W. ^{[22
]}

Greene, Z. ^{[2
,21
]}

Grignon, C. ^{[1
,16
]}

Hasterok, C.

Hogenbirk, E. ^{[3
]}

Itay, R.

Kaminsky, B. ^{[1
,11
]}

机构：

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

[2] Nikhef & Univ Amsterdam, Sci Pk, Amsterdam, Netherlands

[3] Ist Nazl Fis Nucl, Lab Nazl Gran Sasso, Laquila, Italy

[4] Gran Sasso Sci Inst, Laquila, Italy

[5] Univ Bologna, Dept Phys & Astrophys, Bologna, Italy

[6] Ist Nazl Fis Nucl, Bologna, Italy

[7] Johannes Gutenberg Univ Mainz, PRISMA, Inst Phys & Exzellenzcluster, Mainz, Germany

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

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

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

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

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

[13] Max Planck Inst Kernphys, Heidelberg, Germany

[14] Weizmann Inst Sci, Dept Particle Phys & Astrophys, Rehovot, Israel

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

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

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

[18] Univ Calif San Diego, Dept Phys, San Diego, CA 92103 USA

[19] Wilhelms Univ Munster, Inst Kernphys, Munster, Germany

[20] Ist Nazl Fis Nucl, Turin, Italy

[21] Osservatorio Astrofis Torino, Turin, Italy

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

[23] Coimbra Engn Inst, Coimbra, Portugal

[24] Univ Valencia, IFIC, CSIC, Valencia, Spain

来源：

PHYSICAL REVIEW C | 2017年 / 95卷 / 02期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

DOUBLE-BETA-DECAY; BA-130; BA-132; XE-124; XE-126; EC;

D O I：

10.1103/PhysRevC.95.024605

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：

Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For Xe-124 this process has not yet been observed and its detection would provide a new reference for nuclear matrix element calculations. We have conducted a search for two-neutrino double electron capture from the K shell of 124Xe using 7636 kg d of data from the XENON100 dark matter detector. Using a Bayesian analysis we observed no significant excess above background, leading to a lower 90% credibility limit on the half-life T-1/2 > 6.5 x 10(20) yr. We have also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and found a sensitivity of T-1/2 > 6.1 x 10(22) yr after an exposure of 2 t yr.

引用

页数：6

共 45 条

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