Pion Exchange Interaction in Bonn Potential and Relativistic and Non-relativistic Framework in Nuclear Matter

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Handbook of Nuclear Physics
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Abstract

As the residual interaction of quantum chromodynamics in low-energy region, the nucleon-nucleon (NN) potential can only be exactly described by the model picture now. In the Bonn potential, one of the most well-known NN interaction models, the nucleons interact with each other through exchanging the pion and several heavier mesons, where the pion plays an essential role. It provides a partial contribution of tensor force in the intermediate-range region and the main component in the long-range region in NN potential. However, it is very difficult to be treated in the nuclear many-body system due to its pseudovector or pseudoscalar property. Recently, three high-precision charge-dependent Bonn potentials were proposed with pseudovector coupling types and different pion-nucleon coupling strengths and applied them to study the properties of nuclear matter and neutron stars in the non-relativistic and relativistic frameworks. Furthermore, to properly deal with the strong short-range repulsion and tensor force of the NN potential, some new relativistic ab initio methods have also been developed in the past decade to discuss the role of pion and relativistic effects in nuclear matter.

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Acknowledgements

We thank Prof. H. Toki, Prof. H. Shen, Dr. Y. Ogawa, Dr. Y. Zhang, and Dr. W. Wen for fruitful discussions and collaborations. This work was supported in part by the National Natural Science Foundation of China (Grant Nos. 11775119 and 12175109) and the Natural Science Foundation of Tian** (Grant No: 19JCYBJC30800).

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Correspondence to **niu Hu .

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Hu, J., Wang, C. (2022). Pion Exchange Interaction in Bonn Potential and Relativistic and Non-relativistic Framework in Nuclear Matter. In: Tanihata, I., Toki, H., Ka**o, T. (eds) Handbook of Nuclear Physics . Springer, Singapore. https://doi.org/10.1007/978-981-15-8818-1_57-1

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  • DOI: https://doi.org/10.1007/978-981-15-8818-1_57-1

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