View article

The violation of Lorentz invariance is predicted by most of the theories beyond the Standard Model as string theories or quantum loop gravities. It arises as a consequence of merging the Standard Model with gravity, whose effects appear at the Planck mass scale (E∼ 1019 GeV). Therefore, the observation of the violation of Lorentz invariance (and CPT invariance) is searched as a very strong hint of physics beyond the Standard Model and the first sign of physics at the Planck mass scale. In this talk, we will report the first results of the search for the violation of Lorentz and CPT symmetries at T2K experiment. Using the interferences between the neutrino mass states, one shows that neutrino oscillations are one of the most sensitive probe to this effect. We will present the T2K results of the muon neutrino disappearance at on-axis near detector, which has been selected for its very high statistics.