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arXiv 0901.2978nucl-th
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张量优化的~ 4 He裸核子-核子相互作用壳模型

Tensor-optimized shell model with bare nucleon-nucleon interaction for 4He

Takayuki Myo, Hiroshi Toki, Kiyomi Ikeda

摘要:

核子间的π交换产生了强的张量相互作用,对原子核的结合能有很大的吸引贡献。这种非中心张量相互作用在壳层模型框架中难以处理,阻碍了对原子核结构的全面理解。我们发展了强张量相互作用的张量优化壳模型(TOSM),现在我们能够使用裸核子核子相互作用的帮助下的么正相关算符方法(UCOM)的短程硬核。我们采用核子-核子相互作用AV 8 ',显式计算了$^4$ He的基态,并与严格的少体模型计算进行了详细比较。我们展示了大量的成功的张量优化壳模型与裸核子核子相互作用的4 He。

英文摘要:

The pion exchange between nucleons generates a strong tensor interaction, which provides a large attractive contribution for the binding energy of nucleus. This non central tensor interaction is difficult to handle in the shell model framework, which hinders full understanding of nuclear structure. We develop the tensor-optimized shell model (TOSM) for the strong tensor interaction and now we are able to use bare nucleon-nucleon interaction with the help of the unitary correlation operator method (UCOM) for the short-range hard core. We adopt the nucleon-nucleon interaction, AV8', and calculate explicitly the ground state of $^4$He and make a detailed comparison with rigorous few-body model calculations. We show a large amount of success of the tensor-optimized shell model with bare nucleon-nucleon interaction for 4He.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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