Negative parity bands of 115Pd and band structures in 113,115,117Pd

摘要

[[abstract]]Level structures of 113,115,117Pd have been studied using the Gammasphere and a spontaneous fission source of 252Cf. A new 85.1-keV transition was identified in 113Pd. This indicates that the spin and parity of the isomeric state is 9/2- rather than the previously assigned 11/2-. New low-energy transitions are confirmed in 115,117Pd. In 115Pd, the 39.0.- and 49.0-keV transitions are shown to be in prompt coincidence. This coincidence relationship indicates a spin and parity assignment of 1/2+ for the ground state rather than the previously assigned 3/2+.