Charge-dependent nucleon-nucleon potentials in covariant chiral effective field theory
Abstract
The charge-dependent nucleon-nucleon ($NN$) interaction plays a crucial role in understanding the nuclear structure and reaction problems. In this work, we explore 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 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 isospin-breaking effects in nuclear forces and provide a solid foundation for future studies of nuclear structure and reactions within the covariant framework.
Fields of Study & Subjects
Pulsars and Gravitational Waves Research
Nuclear physics research studies
Quantum
superfluid
helium dynamics
Publication details
- Journal / source
- Physical Review C
- Publisher
- American Physical Society (APS)
- Volume
- 114
- Issue
- 1
- Publication date
- 26 June 2026
- Language
- EN