Coulomb-nuclear interference in elastic proton scattering in the eikonal approach

M. L. Nekrasov

M. L. Nekrasov

Nov 2023

0被引用

0笔记

摘要原文

We find exact solution in the Cahn eikonal model, which describes Coulomb-nuclear interference in elastic scattering of charged hadrons. The cases of both point-like and extended particles equipped with electromagnetic form factors are considered. According to the solution obtained the Coulomb-nuclear contributions are not exponentiated and cannot be added to the Coulomb phase. At the same time, the $O(\alpha)$-approximation of the amplitude is ambiguous. We also consider a model with multiple Coulomb scattering under the assumption that Coulomb scattering occurs on uncorrelated charged partons. In this case, in the approximation of a large number of the partons, the scattering can be described in terms of an effective potential (the mean field) resulting from the interaction of multiparton systems. Such a scattering pattern of the protons is possible in principle, but at extremely high energies.