Negative Drive of γ Deformation in Rapidly Rotating N=88,90 Nuclei

• 作者: Chen, Yongshou Riedinger, L.L.
• 来源期刊: 原子核物理：英文版
• 学科: 物理学
• 关键词: YRAST ROTATIONAL band ANGULAR MOMENTA Prolate-oblate barrier
• 年，卷（期）: 1994,（1）
• 页码范围: 77-84
• 页数: 8页
• 分类号: O4

摘要

【正】 In the N=88,90 region,a strong negative drive of γ deformation is generatedby the second lowest positive signature vi_13/2 quasiparticle orbital.In contrast,thelowest positive-parity and negative-parity orbitals in this region exhibit positive drivesin the γ deformation toward oblate shapes.Replacing one of these with the negativedrive orbital strengthens the collectivity for the side band configurations at very highspins.