Abstract
EXO-200 is a single phase liquid xenon detector designed to search for neutrinoless double-beta decay of Xe136. Here, we report on a search for various Majoron-emitting modes based on 100 kg yr exposure of Xe136. A lower limit of T1/2Xe136>1.2×1024yr 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 |geeM|<(0.8-1.7)×10-5.
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CITATION STYLE
Albert, J. B., Auty, D. J., Barbeau, P. S., Beauchamp, E., Beck, D., Belov, V., … Zeldovich, O. Y. (2014). Search for Majoron-emitting modes of double-beta decay of Xe 136 with EXO-200. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90(9). https://doi.org/10.1103/PhysRevD.90.092004
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