Exotic hadrons and SU(3) chiral dynamics

Details Exotic hadrons and SU(3) chiral dynamics Exotic hadrons and SU(3) chiral dynamics

2007-10-15

arxiv.org/abs/0710.2853v2

ECONFC070910:238,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, no figures, Talk given at the 11th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon

Scientific paper

We explore a possibility to generate exotic hadrons dynamically in the scattering of hadrons. The s-wave scattering amplitude of an arbitrary hadron with the Nambu-Goldstone boson is constructed so as to satisfy the unitarity condition and the chiral low energy theorem. We find that the chiral interaction for the exotic channels is in most cases repulsive, and that the strength of the possible attractive interaction is uniquely determined. We show that the attractive interaction in exotic channels is not strong enough to generate a bound state, while the interaction in nonexotic channel generate bound states which are considered to be the origin of some resonances observed in nature.

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