Color Gluons and the Decay of theψ(3700)intoψ(3100)

Abstract

The decay of $\psi \mathrm{}\left(3700\right)\mathrm{}$ into $\psi \mathrm{}\left(3100\right)\mathrm{}$ plus hadrons constitutes a violation of Zweig's rule. On the assumption that the de-excitation proceeds through the emission of Yang-Mills gluons in a color-singlet state, I predict a width of 190 ± 40 keV for this process. All parameters entering the calculation are taken from previous fits to the decay widths of the $\psi \mathrm{}\left(3100\right)\mathrm{}$.