Final state interaction in inclusive and exclusive quasi-elastic processes

Abstract

We discuss a new approach to final state interactions, that keeps explicitly into account the virtuality of the ejected nucleon in quasi-elastic $A(e,e^{\prime }p)X$ scattering at very large $Q^2$, and we present some recent results, at moderately large $Q^2$ values, for the nuclear transparency in ${}^{4}He$, ${}^{16}O$ and ${}^{40}Ca$ and for the momentum distributions of ${}^{4}He$.

Comments: 10 pages, 5 figures, Prepared for the workshop "Cortona 2000, VIII Convegno su Problemi di Fisica Nucleare Teorica"