Charmonium decay in the C 3 P 0 Model

In this work, we use the $C^3P_{\,0}$ model to calculate decay widths of low lying charmonium $J^{PC}=1^{--}$ states, nominally $J/\psi(1S)$ and $\psi(2S)$, in following common channels: $\rho\,\pi$, $\omega\,\eta$, $\omega\,\eta^\prime$, $K^{\ast +}\,K^-$, 0}\,\bar{K}^0$, $\phi\,\eta$, $\phi\,\eta^\prime$.