Measurement of the branching fraction of the doubly Cabibbo-suppressed decay $D^0\to K^{+}{\pi }^{-}{\pi }^0$ and search for $D^0\to K^{+}{\pi }^{-}{\pi }^0{\pi }^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +548

Using $2.93\mathrm{f}{\mathrm{b}}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at a center-of-mass energy of 3.773\,GeV with the BESIII detector, we present a measurement of the branching fraction…