Search for hadronic transition ${\chi }_{cJ}\to {\eta }_c{\pi }^{+}{\pi }^{-}$ and observation of ${\chi }_{cJ}\to K\bar{K}\pi \pi \pi$

The BESIII Collaboration, M. Ablikim, M. N. Achasov +339

Hadronic transitions of ${\chi }_{cJ}\to {\eta }_c{\pi }^{+}{\pi }^{-}$ (J=0, 1, 2) are searched for using a sample of $1.06\times 10^8$ $\psi (3686)$ events collected with the BESIII detector at the BE…