Effective Lagrangian induced by the anomalous Wess-Zumino action and the exotic resonance state with in the , , , and channels
arXiv:hep-ph/0005161 · doi:10.1103/PhysRevD.63.014017
Abstract
A simple model for the exotic waves with in the reactions , , and is constructed beyond the scope of the quark-gluon approach. The model satisfies unitarity and analyticity and uses as a "priming" the "anomalous" nondiagonal interaction which couples together the four channels , , , and . The possibility of the resonancelike behavior of the amplitudes belonging to the and representations of SU(3) as well as their mixing is demonstrated explicitly in the GeV mass range which, according to the current experimental evidence, is really rich in exotics.
LaTex, 17 pages including 4 figures, version published in Phys. Rev. D