CHARGED LEPTON AND NEUTRINO OSCILLATIONS

Problems long present in the conventional formalism employed for neutr ino oscillations are discussed. We here develop a more satisfactory fr amework based on the Dirac equation and its propagators. When 4-moment um conservation is strictly enforced, there will be induced oscillatio ns in space (but not between generations) for the charged leptons, e.g . mu and tau, produced in association with the neutrinos. The oscillat ions are computed explicitly for the pion decay pi --> mu + <(nu)over bar>. Leptonic decays of the W are also briefly discussed.