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| Evolution of reflection asymmetric deformation with angular momentum in heavy nuclei |
| 2017-11-17
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| CAS Key Laboratory of Theoretical Physics | | Institute of Theoretical Physics | | Chinese Academy of Sciences | | Seminar | | Title 题目 | Evolution of reflection asymmetric deformation with angular momentum in heavy nuclei | | Speaker 报告人 | Dr. Timur Shneidman | | Affiliation 所在单位 | Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia | | Date 日期 | 15:30, Nov.17 (Friday), 2017 | | Venue 地点 | Conference Hall 322, ITP/理论物理所322报告厅 | | Abstract 摘要 | An interpretation of angular momentum dependence of the parity splitting and dipole moments in heavy nuclei is suggested. This interpretation is based on the assumption that the main role in the description of the properties of the alternating parity bands plays the reflection asymmetric mode which preserves the axial symmetry. Using the model of the two-center octupole wave functions [1], the corresponding collective potential is obtained and the eigenvalue problem is solved. It is shown that the behaviour of parity splitting with angular momentum can be described by the universal function, where the properties of the concrete nucleus manifest itself through the value of a critical angular momentum. Using the cluster approach of the dinuclear system [2], the critical angular momenta have been calculated for many actinide and rare-earth nuclei. Results for the parity splitting and transitional dipole moments are compared with available experimental data. [1] R. V. Jolos and P. von Brentano, Phys. Rev. C 84, 024312 (2011). [2] T. M. Shneidman, G. G. Adamian, N. V. Antonenko, R. V. Jolos, S.-G. Zhou, Phys. Rev. C 92, 034302 (2015). | | Contact person 所内联系人 | Shan-Gui Zhou (周善贵) |
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