Symmetry character of positive-parity bands in neutron-rich even palladium isotopes

摘要

The new data provided by recent experiments on Pd-118, a nucleus not previously investigated, and on the high-spin states of the yrast band in even Pd110-116 isotopes have been analyzed in the framework of the IBA-2 model, extending a former study. A correct description of the properties of Pd-118 has been obtained by using model parameters equal or very close to those of the neighbouring isotopes. The importance of mixed-symmetry components for a satisfactory description of the states of J greater than or equal to 10 in Pd110-118 is pointed out.