E2, E4 Studies of Pd Isotopes in Microscopic sdgIBA-1

In sdgIBA-1, E2 and E4 transition operators of 104-110Pd isotopes are worked out in terms of a microscopic approach. Comparisons of them with the corresponding phenomenm logical operators are made. It is found that the microscopic Hamiltonian and E2 transition operator are very close to the phenomenological counterparts while the microscopic E4 transition operator is apparently different from the phenomenological one. Calculations for the low-lying collective excitation spectra and reduced E2 (E4) transition rates are performed within the framework of the sdglBA-1. We find that the microscopic calculations reproduce the experimental data quite well, in addition, their agreement with the experimental data in general is very close to that of the phenomenological results, especially to the reduced E4 transition rates disregarding completely the apparent difference of operator.