Weak neutral currents in electron and muon scattering

Abstract

Contributions to inelastic scattering arising from the interference of a weak neutral current with the electromagnetic current are calculated using the Weinberg model and the quark-parton model. These interferences produce nonvanishing ($d{\ensuremath{\sigma}}^{\ensuremath{-}}\ensuremath{-}d{\ensuremath{\sigma}}^{+}$), ($d{\ensuremath{\sigma}}^{\ensuremath{-}(L)}\ensuremath{-}d{\ensuremath{\sigma}}^{+(R)}$), ($d{\ensuremath{\sigma}}^{\ensuremath{-}(L)}\ensuremath{-}d{\ensuremath{\sigma}}^{\ensuremath{-}(R)}$), which give rise to sizable effects when compared to the purely electromagnetic scattering.