Xi C-12(0(+)) AND Xi O-16 POTENTIALS DERIVED FROM THE SU6 QUARK-MODEL BARYON-BARYON INTERACTION

We derive single-hyperon potentials for light nuclei, based on the G-matrix calculations of the quark-model baryon-baryon interactions developed by the Kyoto-Niigata group. The Xi C-12(0(+)) and Xi O-16 potentials have non-trivial oscillating behavior, reflecting strong isospin dependence of the Xi N interaction; namely, attractive isospin I = 0 Xi N interaction and weakly repulsive I = 1 interaction. The latter repulsive effect is largely enhanced in the intermediate region of the Xi-core potential, resulting in very weak attraction at the surface region.