Speaker
Javier Menendez
(University of Barcelona)
Description
Neutrinoless double-beta decay (0nbb) is notoriously difficult to observe. Moreover, expected decay rates depend on the value of the nuclear matrix elements (NMEs) which are poorly known. In order to obtain insights on the NMEs, and therefore on expected decay rates, one can study other processes connected to 0nbb decay. In this talk I confront predictions and measurements of the half-life and beta spectrum of the two-neutrino double-beta decays to test nuclear models used to calculate 0nbb NMEs. In addition, I discuss the relation between 0nbb NMEs (mediated by the weak interaction) and other nuclear observables such as double Gamow-Teller (strong) and double-gamma
(electromagnetic) transitions.
Primary author
Javier Menendez
(University of Barcelona)
