The semi-relativistic approach to electron and neutrino quasielastic scattering from nuclei is extended to include final-state interactions. Starting with the usual nonrelativistic continuum shell model, the problem is relativized by using the semi-relativistic expansion of the current in powers of the initial nucleon momentum and relativistic kinematics. Two different approaches are considered for the final-state interactions: the Smith-Wambach 2p-2h damping model and the Dirac-equation-based potential extracted from a relativistic mean-field plus the Darwin factor. Using the latter, the scaling properties of $(e,e^{\prime })$ and $({\nu }_{\mu },{\mu }^{-})$ cross sections for intermediate momentum transfers are investigated.

• Received 13 December 2006

DOI:https://doi.org/10.1103/PhysRevC.75.034613