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

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Giunti, C.^1 ; Zavanin, E.M.^1,2,3

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

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

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/6/062074/pdf
DOI  :  10.1088/1742-6596/718/6/062074

学科分类：天文学(综合)

来源: IOP

【 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.