We discuss the structure of Deltaron dibaryon in the chiral SU (3) quark model. The energy of Deltaron is obtained by considering the coupling of the ∆∆ and CC (hidden color) channels. The effects of various parameters on the Deltaron mass are also studied. It is shown that the mass of Deltaron is lower than the mass of ∆∆ but higher than the mass of ∆N π.

The H dihyperon (DH) is studied in the framework of the SU(3) chiral quark model. It is shown that except the σ chiral field, the overall effect of the other SU(3) chiral fields is destructive in forming a stable DH. The resultant mass of DH in a three coupled channel calculation is ranged from 2225 M eV to 2234 M eV .In 1977, Jaffe predicted DH [1], a six-quark state with strangeness (s) being -2 and J P = 0 + (S = 0, T = 0), by using a simple color magnetic interaction in the MIT bag model.Since then, many theoretical [2,4,3,5,6,7] and experimental [8] (and references therein) efforts have been devoted to the DH study. There were so many theoretical predictions of DH which are quite different in different models. For instance, by using the MIT bag model, Jaffe gave a binding energy of about 80M eV below the two Λ threshold (E ΛΛ ) [1]; in terms of the Skyrme model, Balachandran et al. even showed a larger binding energy of about several

The structure o f H dihyperon (DH) is investigated by employing the SU (3) chiral quark model. As the structure o f DH, two different configuations, six-quark cluster configuration and two-cluster configuration, are considered, respectively. The result shows that except the U chiral field, the overall effect o f the other SU (3) chiral fields is destructive in forming a stable DH and the two-cluster configuration is the preferred structure. The resultant mass o f DH in a three-coupled-channel calculation in the SU (3) chiral quark model is ranged from 2225 to 2234 MeV.