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| Cluster approach to the structure of heavy nuclei |
| 2014-06-20
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| Institute of Theoretical Physics | | Chinese Academy of Sciences | | State Key Laboratory of Theoretical Physics | | Seminar | | | | Title 题目 | Cluster approach to the structure of heavy nuclei | | Speaker 报告人 | Dr. Timur M. Shneidman | | Affiliation 所在单位 | Institute of Theoretical Physics, Chinese Academy of Sciences and Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research, Dubna, Russia | | Date 日期 | 2014年6月20日（周五）上午10：00 | | Venue 地点 | 理论物理研究所老楼322会议室 | | Abstract
摘要
| We developed a cluster model which allows us to take into account both shape deformation parameters and cluster degrees of freedom. In the proposed model the mass asymmetry variable which describes the partition of nucleons between the clusters is used as a collective coordinate. Due to this, the wave function of the nucleus is treated as a superposition of different cluster configurations including the mononucleus. The model is applied to describe the multiple negative-parity bands in the deformed actinides. To describe the reflection asymmetric collective modes characterized by the nonzero values of K, the degrees of freedom related to the internal excitation of clusters are taken into account. The observed excitation spectra and angular-momentum dependencies of the parity splitting and electromagnetic transition probabilities are explained for different isotopes of Ra, Th, U, and Pu. | | Contact Person 所内合作者 | 周善贵 |
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