Abstract
The polarization asymmetry in the scattering of polarized electrons from nuclei coming from the interference between electromagnetic interactions and parity-violating neutral-current interactions is discussed. It is shown how measurements of this asymmetry in various elastic and inelastic electron-nucleus scatterings can be used to determine specific spin and isospin terms in the hadronic neutral current. A specially interesting case would be a measurement in a ${0}^{+}$ \ensuremath{\rightarrow}${0}^{\ensuremath{-}}$ excitation, in which the asymmetry is 100 times larger than usual because the electromagnetic matrix element involves two-photon exchange.
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