| Content: The extended chiral SU(3) quark model has been proposed to study the differentshort-range interaction. Based on chiral SU(3) quark model, couplings among vector mesonfields with quarks is considered in this extended chirai SU(3) quark model. There are totallydifferent short-range mechanisms in this two models. The OGE is responsible for the short-rangemechanism in the chiral SU(3) quark model, and vector meson change effect governs short-rangemechanism in the extended chiral SU(3) quark model.Using the extended chiral SU(3) quark model, the deuteron structure and nucleon-nucleon(NN)scattering process were studied. Within the framework of resonating group method (RGM), Weuse the same sets of paramaters to study the structures of∑*△(0,5/2) and△△(0,3). By analysisingvector meson changes in detail, we conclude that, for the spin=0, the contributions from thevector meson changes are repulsive, and the repulsive contributions will get smaller when thetensor coupling is considered. The binding energy will change correspondingly.∑*△(0,5/2) and△△(0,3) are both weak bound dibaryon states. To get more information about△△(0,3) dibaryonsystem, we further studied the elastic scattering processes. |
PDF Full Text Request