Abstract
The role of pseudoscalar mesons in the dynamical properties of baryon resonances is examinedby means of the constituent quark mod el with meson-quark coupling. Since resonance properties are closely relatedto meson-baryon scatterings, it is important to includ e reaction processes as well as mass spectra in the analysis. The isobar model is employed to properly extract information of baryon resonances from reaction amplitudes. Prominent features of resonance spectra are reproduced fairly well by taking account of baryon selfenergies due to meson-quark coupling. Several problems remained in the static quark model of baryons, e.g. Λ(1405)-Λ(1520) mass difference, are also studied. Brief comments on some improvements of the present model are given.
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