Formulation of shell-cluster overlap integral with Gaussian expansion method
Formulation of shell-cluster overlap integral with Gaussian expansion method
复制标题
用高斯展开法求解壳簇重叠积分
DOI：
10.1093/ptep/ptab120
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发表时间：
2021
影响因子：
3.5
通讯作者：
M. Ito and N. Shimizu,
中科院分区：
文献类型：
--
作者：
R. Nakamoto;E. Ueda;M. Ito and N. Shimizu,
我们制定了一种计算方法来评估壳模型和团簇模型波函数的重叠积分。该框架被应用到系统的核心加两个中子，壳模型配置（核心++）和双中子团簇（核心+）的重叠的大小进行了探索。我们已经发现，当两个中子占据低轨道角动量的壳模型轨道，如-和-波轨道时，重叠积分的大小显著增强。计算了封闭核加两个中子系统的壳-团重叠，在系统计算中也出现了由于占据理论轨道而引起的增强。讨论了组态相互作用对壳层-团簇重叠积分的影响。
We formulate a computational method to evaluate the overlap integral of the shell-model and cluster-model wave functions. The framework is applied to the system of the core plus two neutrons, and the magnitude of the overlap of the shell-model configuration (core ++) and the di-neutron cluster one (core +) is explored. We have found that the magnitude of the overlap integral is prominently enhanced when two neutrons occupy shell-model orbits with low orbital angular momenta, such as- and-wave orbits. The shell–cluster overlap is calculated in systems with-closed cores plus two neutrons, and the enhancement due to occupation of theororbit also occurs in the systematic calculation. The effect of the configuration interaction on the shell–cluster overlap integrals is also discussed.