Nonleptonic decays of charmed mesons: Implications fore+e−annihilation

Abstract

Using a generalization of the $\left|\Delta I\right|=\frac{1}{2}$ rule, we analyze the nonleptonic weak decays of pseudoscalar charmed mesons. We call attention to the likelihood that the dominant decays will be into many-body channels. Special attention is devoted to the properties of charmed final states just above charm threshold in $e^{+}{e}^{-}$ annihilation. The questions of charged multiplicity, copious kaon production, and energy carried by neutrals are explored.