| Indication of Negative Triaxial Deformation in the Very Neutron—Deficient Odd—A Re Isotopes |
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| 引用本文： | 周小红,许甫荣,郑勇,张玉虎.Indication of Negative Triaxial Deformation in the Very Neutron—Deficient Odd—A Re Isotopes[J].中国物理快报,2003,20(6):825-828. |
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| 作者姓名： | 周小红 许甫荣 郑勇 张玉虎 |
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| 作者单位： | [1]InstituteofModernPhysics,ChineseAcademyofSciences,Lanzhou730000 [2]DepartmentofTechnicalPhysicsandKeyLaboratoryofMinistryofEducation,PekingUniversity,Beijing100871 |
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| 摘 要： | For the 9/2 514] bands in light odd-A Re isotopes, the energy signature splitting and its relation with the signature dependence of M1 transition matrix elements are investigated in connection with the deviation of nuclear shape from axial symmetry. By comparing the energy signature splittings and relative magnetic transition rates between the experimental values and the theoretical calculations assuming axially symmetric shapes, it is found that discrepancies increase with the decreasing neutron number. These discrepancies strongly suggest an appreciable negative γ deformation for the very neutron-deficient odd-A Re isotopes.
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| 关 键 词： | 中子缺乏 质子奇数 矩阵变换 原子核物理 轴对称 形状 结构分析 能量 磁性 铼同位素 |
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