E2 transition andQJ+systematics of even mass palladium nuclei

The yrast spectra with ${\mathit{J}}_{\max }^{\mathrm{\pi }}$=${10}^{+}$, B(E2) transition probabilities, and ${\mathit{Q}}_{\mathit{J}}^{+}$ values are calculated for even-even palladium isotopes by carrying out variation-after-projection calculations in conjunction with the Hartree-Fock-Bogoliubov (HFB) ansatz employing a pairing-plus-quadrupole-quadrupole effective interaction operating in a reasonably large valence space outside the ${}_{}{}^{76}{}_{}{}^{}\mathrm{Sr}$ core. Our calculations describe the shape changes as a function of mass number for palladium isotopes and also reveal that both the HFB technique and the quadrupole-quadrupole-plus-pairing model of the two-body interaction are fairly reliable in this mass region. © 1996 The American Physical Society.