Systematics of one-quasiparticle configurations in neutron-rich Sr, Zr, and Mo odd isotopes with the Gogny energy density functional

TL;DR

This study investigates the structure of neutron-rich Sr, Zr, and Mo odd isotopes using advanced nuclear models, highlighting the influence of nuclear deformation and shape coexistence on their spectroscopic properties.

Contribution

It applies the Hartree-Fock-Bogoliubov method with the Gogny energy density functional to systematically analyze one-quasiparticle configurations in these isotopes, incorporating both D1S and D1M parametrizations.

Findings

Nuclear deformation significantly affects quasiparticle configurations.

Shape coexistence influences ground and low-lying state properties.

Comparison of D1S and D1M functionals provides insights into model robustness.

Abstract

The systematics of one-quasiparticle configurations in neutron-rich Sr, Zr, and Mo odd isotopes is studied within the Hartree-Fock-Bogoliubov plus Equal Filling Approximation method preserving both axial and time reversal symmetries. Calculations based on the Gogny energy density functional with both the standard D1S parametrization and the new D1M incarnation of this functional are included in our analysis. The nuclear deformation and shape coexistence inherent to this mass region are shown to play a relevant role in the understanding of the spectroscopic features of the ground and low-lying one-quasineutron states.