Quadrupole Pairing Correlations and Moments of Inertia of Superdeformed Nuclei

• 作者: Chen, Yongshou
• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: —Superdeformation QUADRUPOLE PAIRING MOMENTS of INERTIA
• 年，卷（期）: 1996,（4）
• 页码范围: 209-218
• 页数: 10页
• 分类号: O4

摘要

【正】 The Harmonic OseiUator Quadruple Pairing Cranking Hartree-Fock-Bogoliubov（HFB）theoreti-cal model is established and applied to the superdeforrned（SD）rotational states.The reduction and col-lapse of the pairing fields,including Y₂₀,Y₂₁ and Y₂₂ fields at superdeformation and high spins,are stud-ied.It is found that the correct rotational frequency ω-dependence of the pairing fields is crucial for thetheory to reproduce the rising behavior of dynamic moment of inertia J^（2） observed in the A=190 region,and the Y₂₁ pairing contributes significantly to reducing the rising rate of J^（2） and thus may strongly influ-enee the collective properties of SD nuclei.The calculated J^（2） of ¹⁹²H8 is in good agreement with the ex-perimental data up to （?）ω=0.32 MeV.