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arXiv · 2302.01042

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

Tokuro Fukui
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Abstract

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.

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Tokuro Fukui. 2023-02-02. Implementation of chiral two-nucleon forces to nuclear many-body methods with Gaussian-wave packets. https://doi.org/10.1093/ptep/ptad087

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