题 目: Tensor Force Effects on Nuclear Structure and Angular-Momentum Projected Potential Energy Surfaces Based on A Combined Method


报告人: 顾建中 研究员 中国原子能科学研究院

时间: 2015年12月17日 10:00

地点: 物理楼 333 报告厅

主办单位:
吉林大学物理学院 吉林大学理论物理中心 吉林省物理学会

报告人简介:
中国原子能科学研究院研究员。在苏州大学取得理学学士和硕士学位,在中国原子能科学研究院获得理学博士学位。先后在中国科学院理论物理研究所、德国 Max-Planck 核物理研究所 (海得堡)、日本京都大学等研究机构从事博士后研究工作。研究领域: 原子核结构、原子核反应、原子核及强子中的量子混沌。近年来和卓益忠研究员等人合作开展理论生物学(物种演化)研究。在国内外物理学和生物学刊物上发表学术论文九十余篇,其中SCI论文八十余篇。多篇论文是严格的解析结果。

摘要:
he tensor force is a non-central and non-local spin-spin interaction and serves as a necessary and important component of the nuclear force. In the Skyrme-Hartree-Fock-Bogoliubov (HFB) framework we investigated the tensor force effects on nuclear structure systematically. It is found that the tensor force has a significant influence on many structural properties. And some exotic features in the shell evolution, proton bubble formation, giant resonance and nuclear deformation are successfully described with the inclusion of the tensor force. Meanwhile, in order to study nuclear equilibrium shapes, shape coexistence, shape transitions and decay out of super-deformed bands we developed a method to calculate nuclear potential energy surfaces (binding energies) by combing a model to describe nuclear ground state properties (for instance the HFB) with another model to describe nuclear excitations (for instance the projected shell model). The combined method has been successfully applied to understand the shapes, shape coexistence, shape transitions and decay out of super-deformed bands for quite a few nuclei in mass regions A=80 and 190 .