THE BARYON-BARYON INTERACTION IN A MODIFIED QUARK-MODEL

The quark-cluster model with coupling constants constraint by chiral s ymmetry is extended to include strange quarks. In this model, besides the confinement and one-gluon exchange potentials, the pseudoscalar me sons and sigma (sigma) meson exchanges are included as the nonperturba tive effect. Using this interaction we studied the binding energy of t he deuteron, the NN scattering phase shifts and the hyperon-nucleon cr oss sections in the framework of the resonating group method (RGM). Th e results are reasonably consistent with experiments.