Predictions for neutrinoless double-beta decay in the 3+1 sterile neutrino scenario

[摘要] In this proceeding we present predictions of the effective Majorana mass |mββ| in neutrinoless double-β decay for the standard 3v mixing case and for the 3+1 neutrino mixing case indicated by the short-baseline anomalies. We have taken into account the uncertainties of the neutrino mixing parameters determined by oscillation experiments. We obtained that the predictions for |mββ| in the cases of 3v and 3+1 mixing are quite different, in agreement with previous discussions in the literature, and that future measurements of neutrinoless double-β decay and the total mass of the three lightest neutrinos in cosmological experiments may distinguish the 3v and 3+1 cases if the mass ordering is determined by oscillation experiments.

[发布机构] INFN, Sezione di Torino, Via P. Giuria 1, Torino; I-10125, Italy^1;Department of Physics, University of Torino, Via P. Giuria 1, Torino; I-10125, Italy^2;Instituto de Física Gleb Wataghin, Universidade Estadual de Campinas - UNICAMP, Rua Sérgio Buarque de Holanda, 777, Campinas; SP; 13083-859, Brazil^3

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Majorana;Measurements of;Neutrino mixing;Neutrinoless double-beta decays;Short base lines;Sterile neutrinos;Total mass