Study on the resonant parameters of $Y(4220)$ and $Y(4390)$

Jielei Zhang, Limin Yuan, Rumin Wang

Many vector charmonium-like states have been reported recently in the cross sections of $e^{+}{e}^{-}\to \omega {\chi }_{c0}$, ${\pi }^{+}{\pi }^{-}{h}_c$, ${\pi }^{+}{\pi }^{-}J/\psi$, ${\pi }^{+}{\pi }^{-}\psi (3686)$ and $π^{…