Exotic hadrons in s-wave chiral dynamics
Abstract
We study s-wave scattering of a hadron and a Nambu-Goldstone boson induced by the model-independent low energy interaction in the flavor SU(3) symmetric limit. Establishing the general structure of the low energy interaction based on group theoretical arguments, we find that the interaction in the exotic channels are in most cases repulsive, and that for possible attractive channels the interaction strengths are weak and uniquely given independent of channel. Solving the scattering problem with this interaction, we show that the attraction in the exotic channels is not strong enough to generate a bound state from the physically known target hadrons. We also find that there are no attractive interaction in the exotic channels in large Nc limit.
Keywords
Cite
@article{arxiv.hep-ph/0609014,
title = {Exotic hadrons in s-wave chiral dynamics},
author = {Tetsuo Hyodo and Daisuke Jido and Atsushi Hosaka},
journal= {arXiv preprint arXiv:hep-ph/0609014},
year = {2007}
}
Comments
RevTeX4, 4 pages, 1 figure, 2 tables, typos corrected