PARITY-VIOLATING QUASI-FREE ELECTRON-DEUTERON SCATTERING IN A COVARIANT APPROACH

The role of relativistic corrections associated with lower Dirac compo nents of the deuteron wave function, is examined for parity-violating electron scattering. The relation between these corrections and negati ve-energy components of the struck nucleon in relativistic plane-wave impulse approximation is elucidated. The model dependence induced by d escribing such effects, using different deuteron vertex functions and prescriptions for the half-off-shell nucleon vertices, is compared wit h the precision required for studies of nucleon strangeness in quasiel astic PV e-d scattering.