The Baryon-Baryon Interaction in the Large-$N_c$ Limit
Abstract
We analyze the large- structure of the baryon-baryon potential derived in the framework of SU(3) chiral perturbation theory up to next-to-leading order including contact interactions as well as one-meson and two-meson exchange diagrams. Moreover, we assess the impact of SU(3) symmetry breaking from a large- perspective and show that the leading order results can successfully be applied to the hyperon-nucleon potential. Our results include a reduction of the number of relevant low-energy constants of the leading order contact interaction from fifteen to three, and we show that consistency is preserved if the ratio is given by and the ratio for the baryon decuplet-to-octet coupling is given by 2.
Keywords
Cite
@article{arxiv.2412.13677,
title = {The Baryon-Baryon Interaction in the Large-$N_c$ Limit},
author = {Thomas Vonk and Ulf-G. Meißner},
journal= {arXiv preprint arXiv:2412.13677},
year = {2025}
}
Comments
18 pages, 4 figures, corresponds to the published version, more explanations, one extra appendix, typos corrected