We estimate the contributions to the asymmetry that arise from the parity-violating force between nucleons. For $Q^2=1\mathrm{}$ ${\mathrm{GeV}}^2$ the resulting asymmetry is about ${10}^4$ times smaller than the one arising from the photon—$Z$-boson interference term.

• Received 27 November 1978

DOI:https://doi.org/10.1103/PhysRevD.19.3236