Recent results of the OPERA experiment

OPERA is a long baseline hybrid experiment located in the Gran Sasso underground laboratory designed to study the $ν_µ \to ν_τ$ neutrino oscillations. OPERA is the first experiment searching for $ν_τ$ appearance from a pure high energy $ν_µ$ beam (CNGS) produced at CERN and travelling a distance of 730 km to the OPERA detector. Tau leptons produced in charged current interactions are identified from their decay topology using the technique of nuclear emulsions. After a brief introduction on the physics motivation, on the OPERA hybrid electronic-emulsion detector and the description of the principle of tau detection, the recent results are presented including a topological and kinematical description of the first candidate event.