中文摘要：

基于不同实验组给出的J/ψ→VP的分支比,对衰变过程耦合常数的性质进行了研究.发现八重态的强作用耦合强度参数g8大约是单态的强作用耦合参数g1的2倍;引起SU（3）破缺的电磁效应的耦合常数较大,其三个耦合常数差别并不明显,而引起SU（3）破缺的质量效应的耦合常数较小,同时这三个耦合常数相差很大,而且不确定性也大;强作用与电磁作用之间的相角大约在70°～80°之间;这使我们对J/ψ→VP衰变过程耦合常数的性质有了更加深入的了解.

英文摘要：

Based on the branching fractions of J/ψ→VP from different experiments, we study on the coupling constants of J/ψ→VP decays. We find that the octet coupling constant of strong interaction g8 is about twice of the singlet coupling constant g1 ; the electromagnetic breaking term gE is larger the mass breaking term gM, more-over, the three parameters of electromagnetic breaking term are about equal, but the three parameters of mass breaking term are different and their uncertainty are also large;and the phase angle between strong interaction and electromagnetic interaction is about between 70°and 80° It makes us enhance the understanding of the coupling constant of J/ψ→VP decays.