Liaoning Normal Univ, Dept Phys, Dalian 116029, Peoples R China
; Inst High Energy Phys, Beijing 100039, Peoples R China
The chiral SU(3) quark model is extended to include coupling between vector chiral field and quarks. By using this model, the phase shifts of NN scattering for different partial waves are studied. The results are very similar to those of the chiral SU(3) quark model calculation, in which one gluon exchange (OGE) plays dominate role in the short range part of the quark-quark interactions. Only in the S-1(0) case, the one channel phase shifts of the extended chiral SU(3) quark model are obviously improved. (C) 2003 Elsevier B.V. All rights reserved.