Federico Sanchez (IFAE), "New T2K oscillation results"

lundi 5 mai 2014, 14:00 → 15:00 Europe/Paris

1222-RC/SB-08 (LPNHE)

The Tokai to Kamioka (T2K) experiment is a long baseline neutrino oscillation experiment situated in Japan. A high intensity neutrino beam is produced at the Japan Proton Accelerator Research Complex, in Tokai, Japan. In 2011, the collaboration announced the first indication of muon neutrino to electron neutrino transformation, which was then a new type of neutrino oscillation; now, with 3.5 times more data, this transformation is firmly established. This T2K observation is the first of its kind in that an explicit appearance of a unique flavor of neutrino at a detection point is unequivocally observed from a different flavor of neutrino at its production point. The T2K collaboration also reports a precision measurement of muon neutrino disappearance with an off-axis neutrino beam with a peak energy of 0.6 GeV. New T2K results combine electron neutrino appearance and muon neutrino disappearance with high precision reactor neutrino results to provide the first exclusion plots for delta CP in the neutrino sector. T2K Near detector is used in both oscillation measurements to constrain the neutrino flux and cross section parameters.

Transparents LPNHE-5May14.pdf