High-spin intrinsic and rotational states in the stable nucleus [Formula Presented] Evidence for reaction-dependent spin population

The stable nucleus [Formula Presented] Hf was studied with time-correlated particle-[Formula Presented]-[Formula Presented] techniques following the reaction [Formula Presented] Hf at a beam energy of 70 MeV. New high-spin states include extensions to three-quasiparticle bands based on the [Formula Presented] and [Formula Presented] configurations, together with a new band associated with the [Formula Presented], [Formula Presented] μs isomer. Moreover, the band based on the five-quasiparticle [Formula Presented]=51 minute, [Formula Presented] state has been found, and a band assigned to a new [Formula Presented], five-quasiparticle state. Values of [Formula Presented] agree well with the configuration assignments made to new and previously known bands. Comparison with multiquasiparticle calculations that incorporate a Lipkin-Nogami treatment of pairing correlations with blocking, suggests that all of the most favored three- and five-quasiparticle states have been observed. The dependence of the [Formula Presented]-ray intensities on the angular yields of the [Formula Presented] particles suggests that the population arises from two entry distributions: one associated with complete fusion of the beam with the target, the other with incomplete fusion.