Evidence for ${\eta }_c(2S)\to p\bar{p}{\pi }^{+}{\pi }^{-}{\pi }^0$ and observation of ${\chi }_{cJ}\to p\bar{p}{\pi }^{+}{\pi }^{-}{\pi }^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +771

Using $(2.712\pm 0.014)\times 10^9$ $\psi (3686)$ events collected by the BESIII detector at the BEPCII collider, the $\psi (3686)\to \gamma p\bar{p}{\pi }^{+}{\pi }^{-}{\pi }^0$ process is investigated. Evidence…