More results from the OPERA experiment

The OPERA experiment reached its main goal by proving the appearance of vτin the CNGS vμbeam. Five vτcandidates were detected with a S/B ratio of ∼ 10, allowing to reject the null hypothesis at 5.1σ. The search has been extended by loosening the selection criteria in order to improve the statistical uncertainty. One of the vτcandidates selected with the new strategy shows a double vertex topology and, after a dedicated multivariate analysis, is compatible with being a vTτinteraction with charm production. Based on the enlarged data sample the estimation of Δm223 in appearance mode is being performed. The search for veinteractions has been extended over the full data set with a more than twofold increase in statistics: data are compatible with the non-oscillation hypothesis in the three-flavour mixing model. The implications of the electron neutrino sample in the framework of the 3+1 sterile mode will lead to exclusion limits on sin22θμe. Finally, the analysis of the annual modulation of cosmic muons is introduced.