Update of hadronic decays of $J/\psi$ and $\psi (2S)$ though virtual photons

Shudong Wang, Gang Li, Zhaoling Zhang +2

The hadronic decay branching ratios of $J/\psi$ and $\psi (2S)$ through virtual photons, $B(J/\psi ,\psi (2S)\to {\gamma }^{\ast }\to \text{hadrons})$, are updated by using the latest publish…