Dalitz-plot decomposition for the $e^{+}{e}^{-}\to J/\psi \pi \pi (K\bar{K})$ and $e^{+}{e}^{-}\to h_c\pi \pi$ processes

Viktoriia Ermolina, Igor Danilkin, Marc Vanderhaeghen

We present an analysis of the $e^{+}{e}^{-}\to {\gamma }^{\ast }\to J/\psi \pi \pi (K\bar{K})$ and $e^{+}{e}^{-}\to {\gamma }^{\ast }\to h_c\pi \pi$ processes employing the recently proposed Dalitz-plot decomposi…