Long-Baseline Accelerator Neutrino Experiments

We review the new results and recent progress in accelerator neutrino oscillation experiments. In 2010, a long-awaited tau signal of neutrino oscillation from a muon neutrino to a tau neutrino was detected in the OPERA experiment. A new-generation high-sensitive neutrino oscillation experiment, T2K, started physics data taking successfully. Finally, the neutrino oscillation parameters were measured more and more precisely in the MINOS experiment which also presented the first look at anti-neutrino oscillations. In addition to these promising progresses, there are a few anomalies not explained in the standard model with neutrino mass, which makes the studies of neutrinos more exciting.