Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory
Nuclear Theory
2025-04-23 v1
Abstract
The charge-dependent nucleon-nucleon () interactions are crucial in understanding the nuclear structure and reaction problems. This work explores the charge-dependent interaction in covariant chiral effective field theory. By incorporating the isospin-breaking contributions, we derive the charge-dependent covariant chiral potential up to the next-to-next-to-leading order (NNLO). The calculated and 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.
Keywords
Cite
@article{arxiv.2504.15598,
title = {Charge dependent nucleon-nucleon potentials in covariant chiral effective field theory},
author = {Yang Xiao and Jun-Xu Lu and Li-Sheng Geng},
journal= {arXiv preprint arXiv:2504.15598},
year = {2025}
}