Hadronic Decays of J/psi(1^{3}S_{1}) and psi'(2^{3}S_{1}) Through Vitrual Photons
Abstract
Description
The latest data for J/psi and psi' leptonic decays, and the latest measurement of the R-parameter are used to show that the present summary values of the branching ratios of the virtual photon mediated hadronic decays of both J/psi and psi' are overestimated. The current best results are B(J/psi -> gamma^{*} -> h) = (13.3 +- 0.3)%, and B(psi' -> gamma^{*} -> h) = (1.65 +- 0.10)%.
2 pages, LaTeX, with 1 fig. Submitted to Phys. Rev. D
2 pages, LaTeX, with 1 fig. Submitted to Phys. Rev. D