Study of the resonance structures in $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}J/\psi$ process

BESIII Collaboration, M. Ablikim, M. N. Achasov +560

Using about 23 $\mathrm{f}{\mathrm{b}}^{-1}$ of data collected with the BESIII detector operating at the BEPCII storage ring, a precise measurement of the $e^{+}e^{-} \rightarrow π^{+}π^{-}J/…