SOME REMARKS ON OFF-SHELL SCATTERING IN THE EIKONAL APPROXIMATION AND APPLICATIONS TO SEMI-INCLUSIVE REACTIONS

摘要

Using the Abel inversion for the eikonal phase as function of the interaction we derive simple integral relations between half and on-shell eikonal phases. A frequently used short-range approximation for the half off-shell phase and profile appears supported by the above-mentioned relation. We work out some examples and also address the half off-shell eikonal phase pertinent to a diffractive amplitude. The latter is relevant for a calculation of selected transparencies Tau of nuclei for a proton, knocked-out in selected semi-inclusive A(e, e'p)X reactions. Some numerical results for Tau are given. (C) 1997 Elsevier Science B.V. [References: 20]