Neutrinoless double-

Document Type

Article

Publication Date

1-1-2022

Abstract

Nuclear matrix elements (NMEs) of neutrinoless double-β decay (0νββ) from 01+ to 01+ of Te130→Xe130, Xe134→Ba134, and Xe136→Ba136 are calculated in the nucleon pair shell-model framework. It is found that the NMEs of 0νββ calculated in the surface-δ approximation (SDI) and the BCS approximation with the model space truncated into the SD-pair subspace are close to each other and smaller than those predicted by the other models. The inclusion of the G pair does not alter the results significantly. When the single-particle energies are assumed to be degenerate, the calculated results in the SD-pair shell model become close to those of the other models. It is also shown that the NMEs are sensitive to the model parameters.

Publication Source (Journal or Book title)

Physical Review C

This document is currently not available here.

Share

COinS