Latest results of CP violation measurement by long baseline neutrino oscillation experiments

Current accelerator-based long baseline neutrino experiments in Japan and US are aiming to search for the CP violation in lepton sector and to determine the mass hierarchy of neutrinos by comprehensive measurements of the neutrino oscillation and antineutrino oscillation. In this talk, the latest results of the T2K experiment in Japan that indicates the CP asymmetry between neutrino and antineutrino and the latest results of the NOvA that is the first evidence of the oscillation from muon antineutrinos to electron antineutrinos will be reviewed. T2K and NOvA are complementary to each other because the measurements with different baseline length is expected to disentangle the CP violation effect and the matter effect in the neutrino oscillation. The future prospects of the T2K, NOvA and the future experiments in US and JP are also reviewed. The US-JP joint R&D of the high-intensity neutrino beam that is one of the most important technology for the current and future long-baseline experiments will be also reported.