T2K experiment

The physics sensitivity of the Tokai to Kamioka long baseline neutrino oscillation experiment (T2K) is discussed. The physics goals of T2K phase-I are precision measurement of Δm232 and θ23 and the search for θ13. The precisions for Δm232 and θ23 are expected to be 1×10−4 and 0.01. The sensitivity for θ13 is one order of magnitude better than current experimental limit. The T2K experiment is expected to be started in 2009.