Multi-dimensional potential energy surfaces and non-axial octupole correlations in actinide and transfermium nuclei from relativistic mean field models
文献类型：会议论文
| 作者 | Lu, BN; Zhao, J; Zhao, EG ; Zhou, SG
|
| 出版日期 | 2014 |
| 会议日期 | JAN 07-10, 2013 |
| 会议地点 | Cocoyoc, MEXICO |
| 关键词 | HARTREE-BOGOLIUBOV THEORY GROUND-STATE PROPERTIES FINITE NUCLEI DENSITY |
| 卷号 | 492 |
| DOI | 10.1088/1742-6596/492/1/012014 |
| 页码 | 12014 |
| 英文摘要 | We have developed multi-dimensional constrained covariant density functional theories (MDC-CDFT) for finite nuclei in which the shape degrees of freedom beta(lambda mu), with even mu, e.g., beta(20), beta(22), beta(30), beta(32), beta(40), etc., can be described simultaneously. The functional can be one of the following four forms: the meson exchange or point-coupling nucleon interactions combined with the non-linear or density-dependent couplings. For the pp channel, either the BCS approach or the Bogoliubov transformation is implemented. The MDC-CDFTs with the BCS approach for the pairing (in the following labelled as MDC-RMF models with RMF standing for "relativistic mean field") have been applied to investigate multi-dimensional potential energy surfaces and the non-axial octupole Y-32-correlations in N = 150 isotones. In this contribution we present briefly the formalism of MDC-RMF models and some results from these models. The potential energy surfaces with and without triaxial deformations are compared and it is found that the triaxiality plays an important role upon the second fission barriers of actinide nuclei. In the study of Y-32-correlations in N = 150 isotones, it is found that, for Cf-248 and Fm-250, beta(32) > 0.03 and the energy is lowered by the beta(32) distortion by more than 300 keV; while for Cm-246 and No-252, the pocket with respect to beta(32) is quite shallow. |
| 会议录 | XXXVI SYMPOSIUM ON NUCLEAR PHYSICS (COCOYOC 2013)
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| 会议录出版者 | IOP PUBLISHING LTD |
| 会议录出版地 | BRISTOL |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| ISSN号 | 1742-6588 |
| WOS研究方向 | Physics |
| 源URL | [http://ir.itp.ac.cn/handle/311006/23598]  |
| 专题 | SCI会议论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.[Lu, Bing-Nan 3.Zhao, Jie 4.Zhao, En-Guang |
| 推荐引用方式 GB/T 7714 | Lu, BN,Zhao, J,Zhao, EG,et al. Multi-dimensional potential energy surfaces and non-axial octupole correlations in actinide and transfermium nuclei from relativistic mean field models[C]. 见:. Cocoyoc, MEXICO. JAN 07-10, 2013. |
入库方式： OAI收割
来源：理论物理研究所
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