The OPERA experiment reached its main goal by proving the appearance of $\nu_{ \tau}$ in the CNGS $\nu_{ \mu} $ beam. A sample of five $\nu_{ \tau}$ candidates was collected allowing to reject the null hypothesis at $5.1 \sigma$. The estimation of $\Delta m^2_{ 23}$ in "appearance mode" has been obtained. Updates on the search for $\nu_{ \mu} \to \nu_e$ oscillations and on the search for sterile neutrino mixing in the $\nu_{ \mu} \to \nu_e$ and $\nu_{ \mu} \to \nu_\tau$ channels are also reported.
Categories: hep-ex hep-ph