Abstract

The elastic scattering of protons on protons at CERN's Intersecting Storage Rings and at FNAL, after the famous diffraction dip, yields a high crosssection when compared to the trend of the diffraction peak before the dip. What do these experimental results tell us? We will be justifying these principal answers: (1) the inelastic overlap function (which controls elastic scattering) can be explained in terms of the characteristics of certain experimentally measured crosssections (more precisely, semi-inclusive cross-sections), (2) a precise mechanism exists which, by bringing into play the inner part of the proton, builds up after-the-dip scattering from before-the-dip scattering, with corresponding predictions, in particular, for CERN's SPS Collider, and (3) after-the-dip scattering is no direct signal of the proton's constituents.

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