ΞΩ and Ξ*Ω Dibaryons in SU(3) Chiral Quark Model

The binding energy of the six quark system with strangeness s =-5 is investigated by the SU(3) chiral constituent quark model. The single Ξ*Ω channel calculation with spin S = 0 and the coupled ΞΩ - Ξ*Ω channel calculation with spin S = 1 are considered. It is shown that in the spin S = 0 case, the binding energy of Ξ*Ω is ranged from 80.0 to 92.4 MeV, while in the S = 1 case, the additional Ξ*Ω channel increases the binding energy of ΞΩ to a range of 26.2 - 32.9MeV.