Resonant Parameters of Vector Charmonium-like States above 4.4 GeV

Abstract

We analysis the $\sqrt{s}$-dependent line shapes of the $e^+e^-\to D_s^{+}D_{s1}^{*-}(2536)$, $D_s^{+}D_{s2}^{*-}(2573)$, $\phi\chi_{c1,2}$, $K^+K^-J/\psi$, $K_S^0 K_S^0 J/\psi$, and $K^+K^-\psi(2S)$ cross sections measured by the BESIII experiment using the four resonant structures $\psi(4230)$, $\psi(4500)$, $\psi(4660)$, and $\psi(4710)$, by performing a simultaneous $\chi^2$-minimized fit. Their masses and widths are obtained. We find that the processes $e^+e^-\to D_s^{+}D_{s1}^{*-}(2536)$, $e^+e^-\to D_s^{+}D_{s2}^{*-}(2573)$, and $e^+e^-\to \phi\chi_{c1,2}$ are all dominantly produced via the $\psi(4660)$ and $\psi(4710)$ decays.