VMD description of $ au o (\omega,\ \phi) \pi^- u_{ au}$ decays and the $\omega-\phi$ mixing angle

摘要

Using the vector meson dominance model we get predictions for theCabibbo-favored $\tom$ and $\tphi$ decays. We show how the measurements ofthese two decays can provide information on the nature of the violation of theOZI rule.