Evolution equation for soft physics at high energy

Abstract

Based on the non-linear logistic equation we study, in a qualitative and semi-quantitative way, the evolution with energy and saturation of the elastic differential cross-section in $pp(\bar{p}p)$ collisions at high energy. Geometrical scaling occurs at the black disk limit, and scaling develops first for small values of the scaling variable $|t|{\sigma }_{tot.}$. Our prediction for $d\sigma /dt$ at LHC, with two zeros and a minimum at large $|t|$ differs, as far as we know, from all existing ones.

Latex, 7 pages, 3 figures

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Cited by in corpus (5)

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• Testing the black disk limit in $pp$ collisions at very high energy
• An analysis of elastic scattering reactions with a Fermi-Dirac pomeron opaqueness in impact parameter space