Gamow-Teller strength distributions for double-beta-decaying nuclei within continuum-QRPA

TL;DR

This paper develops a continuum-QRPA model to accurately describe Gamow-Teller strength distributions in nuclei undergoing double-beta decay, comparing results with experimental data for specific isotopic pairs.

Contribution

The paper introduces a continuum-QRPA approach tailored for open-shell nuclei to improve the understanding of Gamow-Teller strength distributions in double-beta decay.

Findings

Good agreement with experimental data for $^{116}$Cd-Sn and $^{130}$Te-Xe

Enhanced modeling of Gamow-Teller strength distributions in open-shell nuclei

Provides a reliable theoretical framework for double-beta decay studies

Abstract

A version of the pn-continuum-QRPA is outlined and applied to describe the Gamow-Teller strength distributions for $\beta\beta$-decaying open-shell nuclei. The calculation results obtained for the pairs of nuclei $^{116}$Cd-Sn and $^{130}$Te-Xe are compared with available experimental data.