Abstract

Band structures near yrast lines of the Z = N doubly magic nucleus56Ni are investigated with the configuration-dependent crankedNilsson–Strutinsky approach. The observed deformed bands are confirmedas highly deformed and their properties are explained theoretically. Thecalculated transition quadrupole moments Qt, ~1.7 eb at lowspin as well as the kinematic and dynamic moments of inertia J(1)and J(2) for configurations of interest are found to be generallyin good agreement with the observed results. Two terminating states at20+ and 29− for the two observed bands and other terminationsin 56Ni are also predicted. It is found that theconfiguration-dependent cranked Nilsson–Strutinsky approach is better inthe description of nuclear properties and band structures at high spinthan other models.

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