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arXiv 2302.01042nucl-th
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将手征两核力应用于采用高斯波包的核多体方法

Implementation of chiral two-nucleon forces to nuclear many-body methods with Gaussian-wave packets

Tokuro Fukui

AI总结:

针对手征有效场理论未应用于高斯波包核多体方法的问题,本文提出计算手征两核力两体矩阵元的形式体系,可视化矩阵元并分析力的贡献,为团簇现象的从头算研究奠定基础。

摘要:

采用高斯波包描述核子空间分布的多体方法已被广泛用于刻画核系统中的各类现象,尤其是团簇现象。但迄今为止,作为核力前沿理论的手征有效场理论尚未应用于这类方法。本文给出了利用高斯波包计算手征两核力两体矩阵元的形式体系,还对矩阵元进行了可视化,并探究了有心力与张量力的贡献。本工作是从核子、π介子及多核子力角度从头算(ab initio)描述各类团簇现象的立足点。

英文摘要:

Many-body methods that use Gaussian-wave packets to describe nucleon-spatial distribution have been widely employed for depicting various phenomena in nuclear systems, in particular clustering. So far, however, the chiral effective field theory, a state-of-the-art theory of nuclear force, has not been applied to such methods. In this paper, we give the formalism to calculate the two-body matrix elements of the chiral two-nucleon forces using the Gaussian-wave packets. We also visualize the matrix elements and investigate the contributions of the central and tensor forces. This work is a foothold towards an \textit{ab initio} description of various cluster phenomena in view of nucleons, pions, and many-nucleon forces.

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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