A recent measurement of the total $D^{ *+}$ width, $\Gamma_{ \rm tot}(D^{ *+}) = (83.3 \pm 1.3 \pm 1.4)$ keV, is shown to be close to earlier predictions based on the single-quark-transition hypothesis. Those predictions are updated using more recent masses and branching fractions to a value of 80.4 keV, with a small uncertainty associated with the radiative branching fractions of $D^{ *0}$ and $D^{ *+}$. A prediction for the total width of $D_2(2460)$ and its partial width into $D^* \pi$ and $D \pi$ is also updated, and found to be in agreement with experiment.
Categories: hep-ph hep-ex
