Coulomb-nuclear interference in elastic proton scattering in the eikonal approach
M. L. Nekrasov
M. L. Nekrasov
Nov 2023
0被引用
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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.
