The OPERA experiment

The OPERA (oscillation project with emulsion-tracking apparatus) experiment aims to observe an unambiguous ν_π?ν_τ oscillation in the parameter region allowed by previous experiments. The OPERA detector will be installed in the underground Gran Sasso Laboratory, 732 km away from CERN, where the CNGS (CERN neutrino beam to Gran Sasso) ν_π beam will be produced. The signature of the presence of ν_τ's in the ν_π beam will be the detection of τ leptons produced by ν_τ interactions. Nuclear emulsions will be used for precise event reconstruction, while electronic detectors will be used for triggering.