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Evolution of reflection asymmetric deformation with angular momentum in heavy nuclei
2017-11-17  【 】【打印】【关闭

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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