Abstract
We have considered in detail a five-quark model with right-handed current. The model has an additional parameter, ${cos}^{2}\ensuremath{\varphi}$, apart from the usual ${\ensuremath{\theta}}_{W}$, the Weinberg angle, and is able to account satisfactorily for all the charged-current and neutral-current data. Several tests for determining the parameters accurately are proposed. These include the asymptotic ratio of antineutrino to neutrino deep-inelastic scattering and neutral-to-charged-current ratios for deep-inelastic scattering, as well as elastic scattering off protons, direct decays of charmed mesons into neutral leptonic channels, effects in atomic physics, coherent neutrino-nucleus scattering, and $\ensuremath{\psi}\ensuremath{\rightarrow}\ensuremath{\nu}\overline{\ensuremath{\nu}}$ decay.
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