Systematical shell-model calculation in the pairing-plus-multipole Hamiltonian with a monopole interaction for the pf5/2g9/2 shell

TL;DR

This paper systematically applies an empirically fitted shell-model interaction to pf5/2g9/2 shell nuclei, successfully describing various experimental data including spectra, transitions, moments, and binding energies across multiple isotopes.

Contribution

It introduces a comprehensive shell-model calculation using the PMMU interaction for pf5/2g9/2 shell nuclei, demonstrating broad agreement with experimental data.

Findings

Accurately reproduces experimental spectra and moments.

Describes binding energies across multiple isotopes.

Provides detailed insights into neutron-rich Ge and Se isotopes.

Abstract

The recently-proposed effective shell-model interaction, the pairing-plus-multipole Hamiltonian with the monopole interaction obtained by empirical fits starting from the monopole-based universal force (PMMU), is systematically applied to nuclei of the pf5/2g9/2 shell region. It is demonstrated that the calculation describes reasonably well a wide range of experimental data, including not only the low-lying and high-excitation spectra, E2 transitions, quadrupole moments, and magnetic moments, but also the binding energies, for Ni, Cu, Zn, Ga, Ge, As, and Se isotopes with A=64-80. In particular, a structure of the neutron-rich Ge and Se isotopes is discussed in detail.