Hadronic decays of charmed mesons

Hadronic branching fractions for the charmed mesons $D^0$, $D^{+}$, and the expected $F^{+}$ are predicted on the basis of models embodying a minimum of dynamical assumptions. These models entail average decay multiplicities between 3 and somewhat over 4. Suggestions are made for observing the $F^{+}$, for which the wide variety of available final states makes detection in any one state challenging. The branching ratio $\frac{\Gamma (F^{+}\to K^{+}{K}^{-}{\pi }^{+})}{\Gamma (F^{+}\to \mathrm{hadrons})}$ is probably ≲3-6%; $\frac{\Gamma (F^{+}\to K^{+}{\overline{K}}^0)}{\Gamma (F^{+}\to \mathrm{hadrons})}\lesssim 4-6\%$; $\frac{\Gamma (F^{+}\to {\pi }^{+}\eta )}{\Gamma (F^{+}\to \mathrm{hadrons})}\lesssim 3-4 \%$.