Dibaryon systems in the quark mass density- and temperature-dependent model

Abstract

Using the quark mass density- and temperature-dependent model, we have studied the properties of the dibaryon systems. The binding energy, radius and mean lifetime of and (ΩΞ−) are given. We find the dibaryons , (ΩΞ0) are metastable at zero temperature, but the strong decay channel for opens when the temperature becomes 126.8 MeV. It is shown that our results are in good agreement with those given by the chiral SU(3) quark model.