It is shown that within the framework of a non-relativistic quark model with string-like confinement and an instanton induced residual quark-quark interaction it is possible to account simultaneously for the baryon and the meson spectra, including the 7r-q-t/' splitting for pseudoscalar mesons, up to energies of roughly 2 GeV.
Dedicated to Professor Theo Mayer-Kuckuk on the occasion of his 60th birthdayWithin the framework of the non-relativistic quark model (NRQM) we discuss the influence of the coupling between baryonic excitations and meson fields. This leads to the interpretation of the baryon resonances as bound (q)3-configurations embedded in the corresponding meson-baryon continua. This concept is formulated analytically and applied to the description of the low-lying (N = 0)-and (N = 1)-multiplets with strangeness (S=0) and (S=-1). It turns out that the effects of this coupling are comparable in size to the effects induced by the hypcrfine interaction. In particular, a remarkable cancellation of the spin-orbit forces of the qq-interaction and the meson-baryon interaction is observed. The implications of the strong baryon-meson coupling on the baryon-baryon interaction and on the formulation of the Hamiltonian for a multibaryon system are briefly discussed.
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