Effective quark model with chiral U(3)xU(3) symmetry for baryon octet and decuplet

We suggest an effective quark model for low-lying baryon octet and decuplet motivated by QCD with a linearly rising confinement potential incorporating the extended Nambu-Jona-Lasinio (ENJL) model with linear realization of chiral U(3) X U(3) symmetry. Baryons are considered as external heavy states coupled to local three-quark currents with fixed spinorial structure and to low-lying mesons through quark-meson interactions defined in the ENJL model. In the constituent quark loop representation we have calculated the coupling constants of the pi NN, pi N Delta, and gamma N Delta interactions and the sigma(pi N) term. The obtained results are in reasonable agreement with experimental data and other effective field theory approaches. [S0556-2813(99)01301-1].