关于Ψ(2S)与J/Ψ衰变率比值估算的讨论

Comments on the Ratio of Hadronic Decay Rates of Ψ(2S)to J/Ψ*

鉴于微扰量子色动力学预言包含的不确定性，利用现有实验数据计算了Ψ（２Ｓ）与Ｊ／Ψ强衰变分支比的比值；在此基础上还讨论了若干遍举衰变道中有关压制效应对于这个比值的修正．

The perturbative QCD prediction of “ 15% rule” for the ratio of Ψ(2S) to J/JΨ hadronic decay rates suffers seveal apparent approximations. Calculations using existing experimental data are made in this paper; further corrections to this radio for a number of exclusive decay channels are also discussed.