Structural evolution of yrast and near-yrast bands in even–even Pd isotopes using a self-consistent approach

Abstract

With the proton number just below the magic number Z = 50, the palladium isotopes are known to exhibit rich nuclear structure phenomena. Inspired by the extensive experimental as well as theoretical structural investigations of Pd isotopes, we have performed the detailed study of band structures of 108–118 Pd isotopes using triaxial projected shell model approach employing the multi-quasiparticle configuration space. As the mass region A ~ 110 depicts well-developed yrast, γ - and 2γ -bands, the present work demonstrates the reliable description of these bands by performing exact three-dimensional angular-momentum projection technique. The results obtained are also consistent with the global predictions of non-axial shapes for these isotopes. Besides this, the present study predicts the involvement of 2-quasiparticle neutron bands in describing various structural properties of these isotopes up to high spin states and has also achieved an excellent agreement of theoretical results with the known experimental data.