Recent results from T2K and future prospects

International audienceThe T2K long baseline neutrino oscillation experiment in Japan uses a muon neutrino (antineutrino) beam produced by J-PARC and propagating through 295 km to the Super-Kamiokande water Cherenkov detector. The most recent oscillation results from T2K for neutrinos and antineutrinos are reported here. Both ${\nu _\mu }/{\bar \nu _\mu }$ disappearance and ${\nu _e}/{\bar \nu _e}$ appearance data are analyzed, providing leading results for sin(2) θ (23) and $\Delta m_{32}^2$. When fitting using a prior on sin(2) 2θ (13) from reactor measurements, T2K is able to put the first constraints on the CP-violating phase δ(CP) , disfavouring the CP-conserving values 0 and π at 90% C.L. Prospects for the future of T2K are also discussed