Amplitude analysis and branching fraction measurement of the decay $D^0\to K^{+}{K}^{-}\ddot{I}{€}^0\ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

An amplitude analysis of the singly Cabibbo-suppressed decay $D^0\to K^{+}{K}^{-}\ddot{I}{€}^0\ddot{I}{€}^0$ is performed, for the first time, to determine the relative magnitudes and phases of differ…