Future neutrino long baseline experiments

Very soon a new generation of reactor and accelerator neutrino oscillation experiments—Double Chooz, Daya Bay, Reno and T2K—will seek for oscillation signals generated by the mixing parameter θ13. The knowledge of this angle is a fundamental milestone to optimize further experiments aimed at detecting CP violation in the neutrino sector. Leptonic CP violation is a key phenomenon that has profound implications in particle physics and cosmology but it is clearly out of reach for the aforementioned experiments. Since late 90’s, a worldwide activity is in progress to design facilities that can access CP violation in neutrino oscillation and perform high precision measurements of the lepton counterpart of the Cabibbo-Kobayashi-Maskawa matrix.