We have made measurements of decay modes of neutral $D$ mesons into exclusive final states containing photons using data collected with the CLEO detector at the Cornell Electron Storage Ring. We report observation of $D^0\to K^{-}{\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^0$ (charge conjugates are implicit), and present new measurements of the branching ratios for $D^0\to K^{-}{\pi }^{+}{\pi }^0$, $D^0\to {\overline{K}}^0{\pi }^{+}{\pi }^0{\pi }^{-}$, $D^0\to {\overline{K}}^0{\pi }^0, {\overline{K}}^{*0\mathrm{}}\eta$, and $D^0\to {\overline{K}}^0\omega$. Where possible, results are compared with theoretical predictions for two-body $D^0$ decays.

• Received 18 December 1990

DOI:https://doi.org/10.1103/PhysRevD.43.2836