The structure of the Σ*Δ dibaryon in extended chiral SU(3) quark model

In the extended chiral SU(3) quark model, we studied the structure of [Formula: see text] dibaryon with strangeness [Formula: see text]. Our research mainly focuses on three aspects: the contribution of vector mesons, the influence of the hidden-color channel (CC), and the stability of the system under the color screening effect. We found that the [Formula: see text] can form a bound dibaryon with a broad width. In the short-range interaction, the repulsive effect provided by vector [Formula: see text], [Formula: see text] fields is quite similar to one-gluon-exchange (OGE) in the chiral SU(3) quark model. The CC effect promotes the formation of [Formula: see text] bound state. The binding properties are stable when different confining potentials are considered.