Abstract
We report on the calculation of Gamow-Teller and double- decay properties for nuclei around within the framework of the realistic shell model. The effective shell-model Hamiltonian and Gamow-Teller transition operator are derived by way of many-body perturbation theory, without resorting to the empirical effective quenching factor for the Gamow-Teller operator. The results are then compared with the available experimental data, in order to establish the reliability of our approach. This is a mandatory step before we apply the same methodology, in forthcoming studies, to the calculation of the neutrinoless double- decay nuclear matrix elements for nuclei that are currently considered among the best candidates for the detection of this process.
6 More- Received 13 March 2017
- Revised 31 May 2017
DOI:https://doi.org/10.1103/PhysRevC.95.064324
©2017 American Physical Society