SHEN Peng-Nian1,2,3,4, ZHANG Zong-Ye1, YU You-Wen1, YUAN Xiu-Qing1, YANG Shu1
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
2China Center of Advanced Science and Technology (World Laboratory), P.O.Box 8730, Beijing 100080
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
1Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039
2China Center of Advanced Science and Technology (World Laboratory), P.O.Box 8730, Beijing 100080
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
4Center of Theoretical Nuclear Physics, National Laboratory of Heavy Ion Accelerator, Lanzhou 730000
Abstract： The structure of H dihyperon (DH) is investigated by employing the SU (3) chiral quark model. As the structure of DH, two different configuations, six-quark cluster configuration and two-cluster configuration, are considered, respectively. The result shows that except the σ chiral field, the overall effect of 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 of DH in a three-coupled-channel calculation in the SU (3) chiral quark model is ranged from 2225 to 2234 MeV.
2000, Vol. 17 
