中文摘要：

进一步考虑到本底形状对拟和结果的影响后,给出J/Ψ→Ξ^-Ξ^＋的角分布α=0.52±0.26;利用BESII上已有的角分布结果对J/Ψ→Ξ^-Ξ^＋,pp,ΛΛ,Σ^0Σ^0的电形状因子GE^B和磁形状因子GM^B的比进行了研究,并与DM2的结果进行了比较.

英文摘要：

A new modified formulation of the angular distribution was proposed to fit the data, and one gets a = 0.52± 0. 26 for J/Ψ→Ξ-Ξ＋. The ratio of the electric form factor GE^B to the magnetic one GM^B M for J/Ψ→Ξ^-Ξ^＋,pp,ΛΛ,Σ^0Σ^0 is studied using the results from BESII, and the results compared with the one from DM2.