Resonant Parameters of Vector Charmonium-like States above 4.4 GeV

Abstract

We analysis the $\sqrt{s}$-dependent line shapes of the $e^{+}{e}^{-}\to D_s^{+}{D}_{s1}^{\ast -}(2536)$, $D_s^{+}{D}_{s2}^{\ast -}(2573)$, $\varphi {\chi }_{c1,2}$, $K^{+}{K}^{-}J/\psi$, $K_S^0{K}_S^{0}J/\psi$, 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 $e^{+}{e}^{-}\to D_s^{+}{D}_{s1}^{\ast -}(2536)$, $e^{+}{e}^{-}\to D_s^{+}{D}_{s2}^{\ast -}(2573)$, and $e^{+}{e}^{-}\to \varphi {\chi }_{c1,2}$ are all dominantly produced via the $\psi (4660)$ and $\psi (4710)$ decays.

6 pages, 2 figures