Theoretical Study of Signature-splitting and Signature-inversion in Doubly-odd Nuclei in A∼80 Mass Region

Abstract

Projected Shell model calculations have been performed using the angular-momentum projected two-quasiparticle states with the employment of a simple quadrupole-quadrupole + monopole–Pairing + quadrupole-pairing Hamiltonian to study the nuclear structure properties of doubly-odd 80Br and 82Rb isotones. The present calculations reproduce reasonably well the available experimental data on the yrast bands and also predict the new high spin states in these nuclei, where current data are still sparse. The phenomena of Signature-splitting and Signature–inversion have also been studied in detail within the context of Projected Shell Model.