Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf

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GONG Lun-Xun and YU Lei. Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf[J]. Chinese Physics C, 2005, 29(10): 960-963.
GONG Lun-Xun and YU Lei. Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf[J]. Chinese Physics C, 2005, 29(10): 960-963. shu
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Received: 2005-02-16
Revised: 1900-01-01
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Low-Lying Excited High-K Multi-quasiparticle Bands in 178 179Hf

    Corresponding author: GONG Lun-Xun,
  • School of Physics,Peking University,Beijing 100871Department of Physics,Guizhou Normal University,Guiyang 550001,China

Abstract: Using the particle-number conserving (PNC) method for treating the cranked shell model,the microscopic mechanism of the variation with rotational frequency ω of the kinematics moments of inertia for the rare-earth deformed nuclei 178,179Hf is investigated. The 2-qp and 4-qp bands in 17872Hf and 3-qp bands in 17972Hf are analyzed and calculated.The observed ω variation of J(1) is reproduced satisfactorily in PNC calculations. Our analysis shows that the difference between the ω 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.

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