Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866916702077321216 |
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| author | Xiao, Yang Lu, Jun-Xu Geng, Li-Sheng |
| author_facet | Xiao, Yang Lu, Jun-Xu Geng, Li-Sheng |
| contents | The charge-dependent nucleon-nucleon ($NN$) interactions are crucial in understanding the nuclear structure and reaction problems. This work explores the charge-dependent $NN$ interaction in covariant chiral effective field theory. By incorporating the isospin-breaking contributions, we derive the charge-dependent covariant chiral $NN$ potential up to the next-to-next-to-leading order (NNLO). The calculated $np$ and $pp$ phase shifts are in satisfactory agreement with the PWA93 partial wave analysis. Our results contribute to a deeper understanding of the isospin-breaking effects in nuclear forces and provide a solid foundation for future studies of nuclear structure and reactions in the context of a covariant framework. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_15598 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory Xiao, Yang Lu, Jun-Xu Geng, Li-Sheng Nuclear Theory The charge-dependent nucleon-nucleon ($NN$) interactions are crucial in understanding the nuclear structure and reaction problems. This work explores the charge-dependent $NN$ interaction in covariant chiral effective field theory. By incorporating the isospin-breaking contributions, we derive the charge-dependent covariant chiral $NN$ potential up to the next-to-next-to-leading order (NNLO). The calculated $np$ and $pp$ phase shifts are in satisfactory agreement with the PWA93 partial wave analysis. Our results contribute to a deeper understanding of the isospin-breaking effects in nuclear forces and provide a solid foundation for future studies of nuclear structure and reactions in the context of a covariant framework. |
| title | Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory |
| topic | Nuclear Theory |
| url | https://arxiv.org/abs/2504.15598 |