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Search for Majoron-emitting modes of double-beta decay of Xe-136 with EXO-200
Journal article   Open access

Search for Majoron-emitting modes of double-beta decay of Xe-136 with EXO-200

J. B. Albert, D. J. Auty, P. S. Barbeau, E. Beauchamp, D. Beck, V. Belov, C. Benitez-Medina, M. Breidenbach, T. Brunner, A. Burenkov, …
Physical review. D, Particles, fields, gravitation, and cosmology, v 90(9)
10 Nov 2014
url
https://doi.org/10.1103/physrevd.90.092004View
Accepted (AM)Open Access (Publisher-Specific) Open
url
https://doi.org/10.1103/PhysRevD.90.092004View
Published, Version of Record (VoR) Open

Abstract

Astronomy & Astrophysics Physical Sciences Physics Physics, Particles & Fields Science & Technology
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of Xe-136. Here, we report on a search for various Majoron-emitting modes based on 100 kg yr exposure of Xe-136. A lower limit of T-1/2(136XE) > 1.2 x 10(24) yr at 90% C.L. on the half-life of the spectral index = 1 Majoron decay was obtained, corresponding to a constraint on the Majoron-neutrino coupling constant of vertical bar < g(ee)(M)>vertical bar < (0.8-1.7) x 10(-5).

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Domestic collaboration
International collaboration
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Astronomy & Astrophysics
Physics, Particles & Fields
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