Four-way neutrino oscillations

We present a four-neutrino model with three active neutrinos and one sterile neutrino which naturally has maximal νμ→ντ oscillations of atmospheric neutrinos and can explain the solar neutrino and LSND results. The model predicts νe→ντ and νe→νμ oscillations in long-baseline experiments with L/E≫1 km/GeV with amplitudes that are determined by the LSND oscillation amplitude and argument controlled by the atmospheric δm2.