Axial and non-axial study of neutron rich Pd and Cd isotopes near A = 120

Abstract

Yrast energy levels and backbending phenomenon of neutron-rich Pd and Cd nuclei near A = 120 are studied by non-axial Cranked Hartree Bogoliubov (CHB) and axial projected shell model (PSM) approaches. The observed backbending in 118Pd is reproduced by both the approaches. The observed backbending in 120,122Cd is seen to be reproduced by the projected shell model approach by taking prolate deformation. The backbending in these nuclei may be due to the crossing of ground state band by two quasi-particle 1h11/2 neutron bands.