J/ψ →γBB Decays and the Quark Pair Creation Model

We generalize the quark-pair creation model to a study of the radiative decays J/ψ →γBB by assuming that the u, d, or s quark pairs are created with the same interaction strength. From the calculation of the ratio of the decay widths Γ(J/ψ →γpp)/Γ(J/ψ →γpp), we extract the quark-pair creation strength g_I = 15.40 GeV. Based on the SU(6) spin-flavor basis and the “uds”basis, the radiative decay branching ratios containing strange baryons are evaluated. Measurements for these decay widths from the BESII data are suggested.