BARYON SPECTRA IN DEFORMED OSCILLATOR QUARK-MODEL

We study theoretically the baryon spectra in terms of a deformed oscil lator quark (DOQ) model. This model is motivated by confinement of qua rks and chiral symmetry breaking, which are the most important nonpert urbative phenomena of QCD. The minimization of the DOQ Hamiltonian wit h respect to the deformation for each principal quantum number results in deformations for the intrinsic states of excited baryonic states. We find that the resulting baryon spectra agree very well with the exi sting experimental data including SU(3) baryons. The spatial deformati on of the baryonic excited states carry useful information on the quar k confinement and provide a clue to understand the confining mechanism .