7Li和7Be原子核的四体微观团簇模型计算
Four-body Microscopic Cluster Model Calculation of 7Li and 7Be Nuclei
陶德晔 1周波2
作者信息
- 1. 复旦大学现代物理研究所,上海 200433
- 2. 复旦大学现代物理研究所,上海 200433;国家自然科学基金理论物理专款-复旦大学上海核物理理论研究中心,上海 200438
- 折叠
摘要
深入了解7Li和7Be原子核的基态和激发态性质对解释Li,Be等元素在原初宇宙中的产生和相关反应具有重要意义.目前多数关于7Li或7Be的微观模型计算主要考虑其中的α+t或α+3He两体团簇结构.本工作采用四体微观团簇模型开展了理论研究,结果表明,考虑三体和四体团簇结构能够有效优化计算所得的基态和激发态波函数,使能谱和核半径等物理量更加接近实验数据.
Abstract
Understanding deeply the properties of the ground and excited states of 7Li and 7Be is important for explaining the creation and related reactions of Li and Be isotopes in the primordial universe.Most of the cluster model calculations of 7Li or 7Be consider only the α+t or α+3He two-body cluster structure.The present work conducted theoretical research employing a four-body microscopic cluster model.The results show that,by considering the three-and four-body cluster structures,the cal-culated wave functions of ground and excited states are effectively modified.The obtained observables such as energy spectra and nuclear radii reproduce better the experimental data,compared to that in the two-body calculation.
关键词
原子核团簇/微观模型/原子核能谱Key words
nuclear cluster/microscopic model/nuclear energy spectra引用本文复制引用
基金项目
国家重点研发计划项目(2022YFA1602402)
上海市"科技创新行动计划"自然科学基金项目(21ZR1409500)
出版年
2024
NETL
NSTL
万方数据