Observation of Three Resonant Structures in the Cross Section of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{h}_c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using $e^{+}{e}^{-}$ collision data collected with the BESIII detector operating at the Beijing Electron Positron Collider, the cross section of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{h}_c$ is measured at 59…