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

XENON Collaboration

Research output: Contribution to journalArticle

Abstract

Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For Xe124 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 Xe124 using 7636 kgd 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 T1/2>6.5×1020 yr. We have also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and found a sensitivity of T1/2>6.1×1022 yr after an exposure of 2 tyr.

Original languageEnglish (US)
Article number024605
JournalPhysical Review C
Volume95
Issue number2
DOIs
StatePublished - Feb 13 2017

Fingerprint

electron capture
neutrinos
sensitivity
half life
dark matter
detectors
decay
matrices
electrons

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Search for two-neutrino double electron capture of Xe 124 with XENON100. / XENON Collaboration.

In: Physical Review C, Vol. 95, No. 2, 024605, 13.02.2017.

Research output: Contribution to journalArticle

@article{0f96ebf33bb54464b24935ee2363b06a,
title = "Search for two-neutrino double electron capture of Xe 124 with XENON100",
abstract = "Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For Xe124 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 Xe124 using 7636 kgd 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 T1/2>6.5×1020 yr. We have also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and found a sensitivity of T1/2>6.1×1022 yr after an exposure of 2 tyr.",
author = "{XENON Collaboration} and E. Aprile and J. Aalbers and F. Agostini and M. Alfonsi and Amaro, {F. D.} and M. Anthony and Francesco Arneodo and P. Barrow and L. Baudis and B. Bauermeister and {Lotfi Benabderrhmane}, Mohamed and T. Berger and Breur, {P. A.} and A. Brown and E. Brown and S. Bruenner and G. Bruno and R. Budnik and L. B{\"u}tikofer and J. Calv{\'e}n and Cardoso, {J. M.R.} and M. Cervantes and D. Cichon and D. Coderre and Colijn, {A. P.} and J. Conrad and Cussonneau, {J. P.} and Decowski, {M. P.} and {De Perio}, P. and {Di Gangi}, P. and {Di Giovanni}, A. and S. Diglio and E. Duchovni and J. Fei and Ferella, {A. D.} and A. Fieguth and D. Franco and W. Fulgione and {Gallo Rosso}, A. and M. Galloway and F. Gao and M. Garbini and C. Geis and Goetzke, {L. W.} and Z. Greene and C. Grignon and C. Hasterok and E. Hogenbirk and R. Itay and B. Kaminsky",
year = "2017",
month = "2",
day = "13",
doi = "10.1103/PhysRevC.95.024605",
language = "English (US)",
volume = "95",
journal = "Physical Review C",
issn = "2469-9985",
publisher = "American Physical Society",
number = "2",

}

TY - JOUR

T1 - Search for two-neutrino double electron capture of Xe 124 with XENON100

AU - XENON Collaboration

AU - Aprile, E.

AU - Aalbers, J.

AU - Agostini, F.

AU - Alfonsi, M.

AU - Amaro, F. D.

AU - Anthony, M.

AU - Arneodo, Francesco

AU - Barrow, P.

AU - Baudis, L.

AU - Bauermeister, B.

AU - Lotfi Benabderrhmane, Mohamed

AU - Berger, T.

AU - Breur, P. A.

AU - Brown, A.

AU - Brown, E.

AU - Bruenner, S.

AU - Bruno, G.

AU - Budnik, R.

AU - Bütikofer, L.

AU - Calvén, J.

AU - Cardoso, J. M.R.

AU - Cervantes, M.

AU - Cichon, D.

AU - Coderre, D.

AU - Colijn, A. P.

AU - Conrad, J.

AU - Cussonneau, J. P.

AU - Decowski, M. P.

AU - De Perio, P.

AU - Di Gangi, P.

AU - Di Giovanni, A.

AU - Diglio, S.

AU - Duchovni, E.

AU - Fei, J.

AU - Ferella, A. D.

AU - Fieguth, A.

AU - Franco, D.

AU - Fulgione, W.

AU - Gallo Rosso, A.

AU - Galloway, M.

AU - Gao, F.

AU - Garbini, M.

AU - Geis, C.

AU - Goetzke, L. W.

AU - Greene, Z.

AU - Grignon, C.

AU - Hasterok, C.

AU - Hogenbirk, E.

AU - Itay, R.

AU - Kaminsky, B.

PY - 2017/2/13

Y1 - 2017/2/13

N2 - Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For Xe124 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 Xe124 using 7636 kgd 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 T1/2>6.5×1020 yr. We have also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and found a sensitivity of T1/2>6.1×1022 yr after an exposure of 2 tyr.

AB - Two-neutrino double electron capture is a rare nuclear decay where two electrons are simultaneously captured from the atomic shell. For Xe124 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 Xe124 using 7636 kgd 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 T1/2>6.5×1020 yr. We have also evaluated the sensitivity of the XENON1T experiment, which is currently being commissioned, and found a sensitivity of T1/2>6.1×1022 yr after an exposure of 2 tyr.

UR - http://www.scopus.com/inward/record.url?scp=85015641988&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85015641988&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.95.024605

DO - 10.1103/PhysRevC.95.024605

M3 - Article

VL - 95

JO - Physical Review C

JF - Physical Review C

SN - 2469-9985

IS - 2

M1 - 024605

ER -