Total Routhian surface calculations of triaxial or gamma-soft properties in even-A N=76 isotones with 54 <= Z <= 68
文献类型：期刊论文
| 作者 | Chai Qing-Zhen2; Yang Qiong2; Liu Min-Liang1 ; Wang Hua-Lei2
|
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2015-09-01 |
| 卷号 | 39页码:7 |
| 关键词 | total Routhian surface calculation triaxial deformation gamma-instability rotation alignment |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/39/9/094102 |
| 英文摘要 | Total Routhian surface (TRS) calculations for even-even N = 76 isotones with 54 <= Z <= 68 have been performed in three-dimensional (beta(2),gamma,beta(4)) deformation space. Calculated results of the equilibrium deformations are presented and compared with other theoretical predictions and available experimental data. The behavior of collective angular momentum shows the neutron rotation-alignment is preferred in the lighter N =76 isotones, while for the heavier ones the proton alignment is favored. Moreover, multi-pair nucleon alignments and their competition (e.g., in Er-144) are predicted. It is pointed out that these nuclei in the N=76 isotonic chain exhibit triaxiality or gamma softness in high-spin states as well as ground states. Based on deformation-energy curves with respect to axial and non-axial quadrupole deformations, the shape instabilities are evaluated in detail and predicted, particularly in gamma direction. Such instabilities are also supported by the odd- and even-spin level staggering of the observed gamma bands, which is usually used to distinguish between gamma-rigid and gamma-soft asymmetry. |
| WOS关键词 | NUCLEAR GROUND-STATE ; SIGNATURE INVERSION ; BETA-DECAY ; DEFORMATION ; MASSES ; BANDS ; COEXISTENCE ; SYSTEMATICS ; TRANSITION ; ENERGIES |
| 资助项目 | National Natural Science Foundation of China[10805040] ; National Natural Science Foundation of China[11175217] ; Foundation and Advanced Technology Research Program of Henan Province[132300410125] ; S & T Research Key Program of Henan Province Education Department[13A140667] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000361416700007 |
| 出版者 | CHINESE PHYSICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; Foundation and Advanced Technology Research Program of Henan Province ; S & T Research Key Program of Henan Province Education Department |
| 源URL | [http://119.78.100.186/handle/113462/40742]  |
| 专题 | 近代物理研究所_实验物理中心 |
| 通讯作者 | Yang Qiong |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Zhengzhou Univ, Sch Phys & Engn, Zhengzhou 450001, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chai Qing-Zhen,Yang Qiong,Liu Min-Liang,et al. Total Routhian surface calculations of triaxial or gamma-soft properties in even-A N=76 isotones with 54 <= Z <= 68[J]. CHINESE PHYSICS C,2015,39:7. |
| APA | Chai Qing-Zhen,Yang Qiong,Liu Min-Liang,&Wang Hua-Lei.(2015).Total Routhian surface calculations of triaxial or gamma-soft properties in even-A N=76 isotones with 54 <= Z <= 68.CHINESE PHYSICS C,39,7. |
| MLA | Chai Qing-Zhen,et al."Total Routhian surface calculations of triaxial or gamma-soft properties in even-A N=76 isotones with 54 <= Z <= 68".CHINESE PHYSICS C 39(2015):7. |
入库方式： OAI收割
来源：近代物理研究所
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