The study of Ξ~*-Ω interaction

Abstract

The short-range interaction mechanisms are totally different in the chirial SU(3) quark model and in the extended chiral SU(3) quark model.One is from the one-gluon exchange and another is from the vector meson exchange.In this work,we study the Ξ*-Ω interaction in these two models.The results show that it could be deeply bound states in these two models with totally different interaction mechanisms.The possible reasons of forming(Ξ*Ω)ST=012 stangeness-5 bound states are given.From the results,we can see that the chiral σ meson exchange is important,which dominantly provides the attractive interaction.Also we find that the quark exchange effect give attraction to this system,which means the special symmetry is important.Both reasons are helpful to form Ξ*-Ω deeply bound states.