Particle-Number Conserving Calculation of the Bandhead Moments of Inertia of Identical SD Bands

  • Using the particle-number conserving(PNC) method for treating the cranked shell model, the bandhead moments of inertia of the superdeformed(SD) bands 192Hg and 194Hg(1,2,3) were calculated. The configuration structures of the SD bands near the bandheads and the mechanism for the variation of bandhead moments of inertia with the pairing interaction strength G were investigated. The analyses show: (1) The difference in the bandhead moments of inertia, δJ0, is sensitive to the pairing interaction strength, but insensitive to the Nilsson parameters K,μ and the deformation. (2)In A~190 region the pairing interaction still plays an important role and the δJ0 is mainly attributed to the blocking effect. (3) The pairing interaction strength in SD nuclei seems much weaker than in normally deformed nuclei.
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Jin Taihao, Zhao Zhengji and Zeng Jinyan. Particle-Number Conserving Calculation of the Bandhead Moments of Inertia of Identical SD Bands[J]. Chinese Physics C, 1994, 18(3): 239-248.
Jin Taihao, Zhao Zhengji and Zeng Jinyan. Particle-Number Conserving Calculation of the Bandhead Moments of Inertia of Identical SD Bands[J]. Chinese Physics C, 1994, 18(3): 239-248. shu
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Received: 1900-01-01
Revised: 1900-01-01
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Particle-Number Conserving Calculation of the Bandhead Moments of Inertia of Identical SD Bands

    Corresponding author: Jin Taihao,
  • Department of Physics, Peking University, Beijing 100871

Abstract: Using the particle-number conserving(PNC) method for treating the cranked shell model, the bandhead moments of inertia of the superdeformed(SD) bands 192Hg and 194Hg(1,2,3) were calculated. The configuration structures of the SD bands near the bandheads and the mechanism for the variation of bandhead moments of inertia with the pairing interaction strength G were investigated. The analyses show: (1) The difference in the bandhead moments of inertia, δJ0, is sensitive to the pairing interaction strength, but insensitive to the Nilsson parameters K,μ and the deformation. (2)In A~190 region the pairing interaction still plays an important role and the δJ0 is mainly attributed to the blocking effect. (3) The pairing interaction strength in SD nuclei seems much weaker than in normally deformed nuclei.

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