Exotic baryons from a heavy meson and a nucleon
High Energy Physics - Phenomenology
2019-08-14 v1 Nuclear Theory
Abstract
We evaluate a hadronic molecule formed by a heavy meson and a nucleon respecting heavy quark symmetry. The tensor force of pion exchange potential plays a dominate role to produce an strong attraction in this system. Solving coupled channel Schr\"odinger equations for PN and P* N, we find many bound and resonant states with isospin I=0 while there are few resonances in I=1 state. The rich structures with I=0 indicate that the spectrum of heavy baryons near the threshold is influenced by the contributions from such hadron composite structures.
Keywords
Cite
@article{arxiv.1209.0187,
title = {Exotic baryons from a heavy meson and a nucleon},
author = {Yasuhiro Yamaguchi and Shunsuke Ohkoda and Shigehiro Yasui and Atsushi Hosaka},
journal= {arXiv preprint arXiv:1209.0187},
year = {2019}
}
Comments
To appear in the proceedings of The 5th International Workshop on Charm Physics (Charm 2012)