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Searches for double beta decay of Xe-134 with EXO-200
Journal article   Open access   Peer reviewed

Searches for double beta decay of Xe-134 with EXO-200

J. B. Albert, G. Anton, I. Badhrees, P. S. Barbeau, R. Bayerlein, D. Beck, V. Belov, M. Breidenbach, T. Brunner, G. F. Cao, …
Physical review. D, v 96(9)
03 Nov 2017
url
https://link.aps.org/accepted/10.1103/PhysRevD.96.092001View
Accepted (AM)Open Access (Publisher-Specific) Open
url
https://doi.org/10.1103/PhysRevD.96.092001View
Published, Version of Record (VoR) Open

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
Searches for double beta decay of Xe-134 were performed with EXO-200, a single-phase liquid xenon detector designed to search for neutrinoless double beta decay of Xe-136. Using an exposure of 29.6 kg center dot yr, the lower limits of T-1/2(2 nu beta beta) > 8.7 x 10(20) yr and T-1/2(0 nu beta beta) > 1.1 x 10(23) yr at 90% confidence level were derived, with corresponding half-life sensitivities of 1.2 x 10(21) yr and 1.9 x 10(23) yr. These limits exceed those in the literature for Xe-134, improving by factors of nearly 10(5) and 2 for the two antineutrino and neutrinoless modes, respectively.

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Astronomy & Astrophysics
Physics, Particles & Fields
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