Parity violation in quasielastic electron scattering from closed-shell nuclei

J. E. Amaro, J. A. Caballero, T. W. Donnelly, A. M. Lallena, E. Moya de Guerra, J. M. Udias

Published 1995-10-03Version 1

The electromagnetic and weak neutral current matrix elements that enter in the analysis of parity-violating quasielastic electron scattering are calculated using a continuum nuclear shell model. New approximations to the on-shell relativistic one-body currents and relativistic kinematics for use in such models are developed and discussed in detail. Results are presented for three closed-shell nuclei of interest: $^{16}$O, $^{40}$Ca and $^{208}$Pb. The current work concludes with a study of the sensitivity of the resulting parity-violating asymmetries to properties of the nucleon form factors including the possible strangeness content of the nucleon.