The angular correlations and missing energy spectrum in quasifree electron scattering are studied in the unfactorized distorted wave impulse approximation. The present approach, in the nonrelativistic description, effectively includes the finer aspects of the process, namely the off-energy-shell effect and the spin-orbit coupling, which are neglected or approximated in the usual factorization methods. A comparative study between the factorized and unfactorized methods reveals that the unfactorized cross section not only accounts for the absolute value but also a possible asymmetry in its distribution. The study of the off-shell influence on spherical and nonspherical nuclei indicates that the off-shell effect is to increase with the increase of nuclear deformation.

• Received 17 October 1983

DOI:https://doi.org/10.1103/PhysRevC.30.789