SPIN-ORBIT FORCE OF NN INTERACTION BASED ON CHIRAL SU(3) QUARK-MODEL

Spin-orbit force of the NN interaction is studied in the framework of the chiral SU(3) quark model. Both symmetric and antisymmetric spin-or bit (LS) forces of the one gluon exchange and scalar meson exchanges a re taken into account. It is shown that although the inclusions of the LS forces caused by the scalar meson exchanges and the antisymmetric LS terms in this model can notably strengthen the LS couplings in the states of P-3(J) of the NN interaction, an additional enhancement fact or is still needed in order to describe the experimental data.