Measurement of the Branching Fraction for the Decay $\ddot{I}{‡}_{cJ}\to p\bar{p}\hat{I}\cdot \ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Using $(2712.4\pm 14.3)\times 10^6\ddot{I}ˆ(3686)$ events collected by the BESIII detector operating at the BEPCII collider, we present the first observations of the decays $χ_{cJ}(J=0,1…