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Some Remarks on Exotic Resonances

Hanqing Zheng
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Abstract

Using large $N_c$ counting rule, it is argued that tetra-quark resonances do not exist. Also it is pointed out that there exists the violation of exchange degeneracy in the exotic $KN$ scattering channel. It implies either the failure of resonance saturation assumption or it suggests the existence of exotic baryon resonances in such a channel.

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Hanqing Zheng. 2004-11-01. Some Remarks on Exotic Resonances. https://doi.org/10.1142/s0217751x05023785

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