Nuclear weak decays provide important probes to fundamental symmetries in nature. A
precise description of these processes in atomic nuclei requires comprehensive knowledge …

This article presents an overview of the derivation of effective shell-model Hamiltonian and
decay operators within the framework of many-body perturbation theory, and discusses the …

We approach the calculation of the nuclear matrix element of the neutrinoless double-β
decay process, considering the light-neutrino-exchange channel, by way of the realistic shell …

Neutrinoless double-β (0 ν β β) decay is a promising beyond standard model process. Two-
neutrino double-β (2 ν β β) decay is an associated process that is allowed by the standard …

We present the nuclear matrix element for the neutrinoless double-beta decay of Ca 48
based on large-scale shell-model calculations including two harmonic oscillator shells (sd …

We study the double Gamow-Teller (DGT) strength distribution of Ca 48 with state-of-the-art
large-scale nuclear shell model calculations. Our analysis shows that the centroid energy of …

Neutrinoless double beta decay searches can determine the Majorana nature of neutrinos,
the absolute neutrino mass, and provide invaluable insights on the matter dominance of the …

We study two-neutrino (2 ν β β) and neutrinoless double-β (0 ν β β) decays in the nuclear
shell model and proton-neutron quasiparticle random-phase approximation (pnQRPA) …

In nuclear structure calculations, the choice of a limited model space, due to computational
needs, leads to the necessity to renormalize the Hamiltonian as well as any transition …

The relativistic configuration-interaction density functional theory is developed for even-even
and odd-odd nuclei and is used to predict the nuclear matrix element of the neutrinoless ββ …