Charmonium Production Ine+e−→ψ+x(cc¯)and

The dominance of ${\ensuremath{\chi}}_{0}$ in the data for ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}\ensuremath{\psi}+{\ensuremath{\chi}}_{J}(c\overline{c})$ is shown to violate Okubo-Zweig-Iizuka rule factorization. Single gluon exchange gives a nonfactorizing effective $\mathbf{S}\ifmmode\cdot\else\textperiodcentered\fi{}\mathbf{L}$ interaction that generates a large scalar production amplitude. This also has observable effects near threshold in ${e}^{+}{e}^{\ensuremath{-}}\ensuremath{\rightarrow}{D}^{(*)}{D}_{J}$, where enhancements of ${D}^{*}{D}_{0}$ and $D{D}_{1}$ channels are predicted. Further tests and implications are discussed.