日本大阪工业大学Takayuki Myo教授：轻核结团结构中的多构型问题研究

来源：

学校官网

收录时间：

2025-01-19 13:28:06

时间：

2025-01-20 09:30:00

地点：

华南理工大学五山校区23号402室

报告人：

Takayuki Myo 教授

学校：

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关键词：

light nuclei, multi-configuration, variational scheme, antisymmetrized molecular dynamics, AMD, excited states, cluster states, alpha particle, triton, linear-chain structures, A=4N nuclei

简介：

We report our recent progress on the multi-configuration description of light nuclei with a new variational scheme. We employ a nuclear model of the antisymmetrized molecular dynamics (AMD) and superpose the AMD Slater determinants to describe the total wave function. All the parameters in the multiple AMD basis states are determined according to the variational principle of the total energy, which means the simultaneous optimization of the multiple AMD bases. We further extend the method to describe the excited states imposing the orthogonality to the ground-state configurations. We show the results of light nuclei of He, Li and Be isotopes, in which we confirm not only the shell-model like states but also the cluster states with various partitions including the alpha particle and triton. We also predict the elongated linear-chain structures in the excited states of 9Li and 10Be with N=6 isotones. We further report the preliminary results of A=4N nuclei, 12C, 16O and 20Ne and the multi alpha-cluster states are confirmed in their excited states.

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