Exotic baryons from a heavy meson and a nucleon - Positive parity states -
High Energy Physics - Phenomenology
2019-08-08 v1 Nuclear Theory
Abstract
We study heavy baryons with exotic flavor quantum numbers formed by a heavy meson and a nucleon (DbarN and BN) with positive parity. One pion exchange interaction, providing a tensor force, dominates as a long range force to bind the DbarN and BN ystems. In the heavy quark mass limit, pseudoscalar meson and vector meson are degenerate and the binding mechanism by the tensor force analogous to that in the nuclear systems becomes important. As a result, we obtain the DbarN and BN resonant states in the J^P=1/2^+, 3/2^+ and 5/2^+ channels with I=0.
Keywords
Cite
@article{arxiv.1111.2691,
title = {Exotic baryons from a heavy meson and a nucleon - Positive parity states -},
author = {Yasuhiro Yamaguchi and Shunsuke Ohkoda and Shigehiro Yasui and Atsushi Hosaka},
journal= {arXiv preprint arXiv:1111.2691},
year = {2019}
}