Results from the OPERA Experiment

Abstract

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.