/ Experiment-Nucl

Limits of Majorana neutrino mass from combined analysis of data from$^{76}$Ge and$^{136}$Xe neutrinoless double beta decay experiments

Klimenko, A.A. (Dubna, JINR) ; Rumyantseva, N.S. (Dubna, JINR)

Published in: Phys.Part.Nucl.
Year: 2017
Vol.: 48    Num./Issue: 1
Page No: 21-26
Pages: 6
Year: 2017-02-17 published

Abstract: We present effective Majorana neutrino mass limits <m$_{ββ}$> obtained from the joint analysis of the recently published results of$^{76}$Ge and$^{136}$Xe neutrinoless double beta decay (0νββ) experiments, which was carried out by using the Bayesian calculations. Nuclear matrix elements (NMEs) used for the analysis are taken from the works, in which NMEs of$^{76}$Ge and$^{136}$Xe were simultaneously calculated. This reduced systematic errors connected with NME calculation techniques. The new effective Majorana neutrino mass limits <m$_{ββ}$> less than [85.4–197.0] meV are much closer to the inverse neutrino mass hierarchy region.

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DOI: 10.1134/S1063779616060125