Accelerator Neutrino Oscillations

The oscillation of atmospheric neutrinos was the first conclusive evidence of physics beyond the standard model. The K2K and MINOS long-baseline neutrino experiments have confirmed and explored atmospheric neutrino oscillations in detail. Near-term experiments are exploiting the knowledge of solar and atmospheric neutrino oscillations to search for the last unmeasured angle in the neutrino-mixing matrix. Future experiments will search for leptonic CP non-conservation and will try to determine the neutrino mass ordering. After briefly discussing the current status of accelerator long-baseline neutrino measurements, I will describe the near-term and future accelerator-based long-baseline neutrino oscillation program.