High-spin states in neutron-rich even-even Pd isotopes

Transitions among high-spin states in Pd-112,Pd-114,Pd-116 are observed thr ough prompt gamma-ray spectroscopy following the spontaneous fisson of Cf-2 52 Spins and parities are assigned to many newly observed levels based on a ngular correlation analysis and comparison with known spins and parities of less neutron-rich Pd nuclides. The gamma-band structures are significantly extended. New rotational band structures are observed for the first time, and tentatively assigned negative parity. IBA-1 model calculations are perf ormed for the ground state and gamma-bands.