Measurements of the branching fractions of $\ddot{I}{‡}_{cJ}\to \ddot{I}•\ddot{I}•\hat{I}\cdot ,\ddot{I}•\ddot{I}•\hat{I}{\cdot }^{\prime }$ and $\ddot{I}•K^{+}{K}^{-}\hat{I}\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

Using a sample of $(2712.4\pm 14.3)\times 10^6\ddot{I}ˆ$(3686) events collected by the BESIII detector at the BEPCII collider, we measure the branching fractions of the decays $χ_{cJ}…