Shell-model study of single-neutron strength fragmentation in 137Xe

TL;DR

This study uses shell-model calculations with a realistic interaction to analyze single-neutron properties and spectroscopic factors in 137Xe, closely matching recent experimental data.

Contribution

It provides a detailed theoretical analysis of neutron strength fragmentation in 137Xe using a realistic effective interaction derived from the CD-Bonn potential.

Findings

Reproduces experimental excitation energies accurately

Yields spectroscopic factors close to experimental values

Validates the shell-model approach for neutron-rich xenon isotopes

Abstract

We have performed shell-model calculations for the nucleus $^{137}$Xe, which was recently studied experimentally using the $^{136}$Xe($d,p$) reaction in inverse kinematics. The main aim of our study has been to investigate the single-neutron properties of the observed states, focusing attention on the spectroscopic factors. We have employed a realistic low-momentum two-body effective interaction derived from the CD-Bonn nucleon-nucleon potential that has already proved quite successful in describing the spectroscopic properties of nuclei in the $^{132}$Sn region. Comparison shows that our calculations reproduce very well the experimental excitation energies and yield spectroscopic factors that come close to those extracted from the data.