Hadronic Decays of N and ΔResonances in a Chiral Quark Model

Details Hadronic Decays of N and ΔResonances in a Chiral Quark Model Hadronic Decays of N and ΔResonances in a Chiral Quark Model

2000-10-30

arxiv.org/abs/nucl-th/0010099v1

Eur.Phys.J. A12 (2001) 91-101

Physics

Nuclear Physics

Nuclear Theory

17 pages, 6 eps figures

Scientific paper

10.1007/s100500170042

\pi and \eta decay modes of light baryon resonances are investigated within a chiral quark model whose hyperfine interaction is based on Goldstone-boson exchange. For the decay mechanism a modified version of the 3P0 model is employed. Our primary aim is to provide a further test of the recently proposed Goldstone-boson-exchange constituent quark model. We compare the predictions for \pi and \eta decay widths with experiment and also with results from a traditional one-gluon-exchange constituent quark model. The differences between nonrelativistic and semirelativistic versions of the constituent quark models are outlined. We also discuss the sensitivity of the results on the parametrization of the meson wave function entering the 3P0 model.

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