Low-lying excited high-K multi-quasiparticle bands in Hf-178,Hf-179

Using the particle-number conserving (PNC) method for treating the cranked shell model, the microscopic mechanism of the variation with rotational frequency omega of the kinematics moments of inertia for the rare-earth deformed nuclei (HF)-H-178,179 is investigated. The 2-qp and 4-qp bands in Hf-178(72) and 3-qp bands in Hf-179(72) are analyzed and calculated. The observed omega variation of J((1)) is reproduced satisfactorily in PNC calculations. Our analysis shows that the difference between the omega variations of J((1)) for the high K multi-quasiparticle bands and for the ground state band is mainly due to the Pauli blocking effects of high j intruder orbitals near the Fermi surface.Physics, NuclearPhysics, Particles & FieldsSCI(E)中文核心期刊要目总览(PKU)中国科技核心期刊(ISTIC)0ARTICLE10960-9632