Abstract
We perform a Markov chain Monte Carlo (MCMC) statistical analysis of a number of measured ground-state-to-ground-state single /electron-capture and decays in the nuclear mass range of . The corresponding experimental comparative half-lives ( values) are compared with the theoretical ones obtained by the use of the proton-neutron quasiparticle random-phase approximation with -matrix-based effective interactions. The MCMC analysis is performed separately for 47 isobaric triplets and 28 more extended isobaric chains of nuclei to extract values and uncertainties for the effective axial-vector coupling constant in nuclear-structure calculations performed in the framework. As far as available, measured half-lives for two-neutrino decays occurring in the studied isobaric chains are analyzed as well.
1 More- Received 16 June 2016
DOI:https://doi.org/10.1103/PhysRevC.94.055501
©2016 American Physical Society