Bridging two ways of describing final-state interactions in A(e,e ' p) reactions

Abstract We outline a relativistic and unfactorized framework to treat the final-state interactions in quasielastic A ( e , e ′ p ) reactions for four-momentum transfers Q 2 ≳0.3 (GeV/ c ) 2 . The model, which relies on the eikonal approximation, can be used in combination with optical potentials, as well as with the Glauber multiple-scattering method. We argue that such a model can bridge the gap between a typical “low” and “high-energy” description of final-state interactions, in a reasonably smooth fashion. This argument is made on the basis of calculated structure functions, polarization observables and nuclear transparencies for the target nuclei 12 C and 16 O.