Study of the Magnetic Dipole Transition of $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}{\cdot }_c$ via $\hat{I}{\cdot }_c\to p\bar{p}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +692

Using $(10.087\pm 0.044)\times 10^9$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at the $e^{+}{e}^{-}$ BEPCII collider, we present the first amplitude analysis of $J/\ddot{I}ˆ\to {\hat{I}}^{3}p\bar{p}$…