Regular Article - Theoretical Physics
High-energy elastic diffractive scattering of nucleons in the framework of the two-Reggeon eikonal approximation (from U-70 to LHC)
A.A. Logunov Institute for High Energy Physics, NRC “Kurchatov Institute”, 142281, Protvino, Russia
Accepted: 10 January 2022
Published online: 20 January 2022
Elastic diffractive scattering of nucleons is described in terms of Regge-eikonal approach. It is demonstrated that, in a wide kinematic region (starting from the U-70 energies), the eikonal of proton–proton scattering can be approximated by the sum of two Reggeon exchange terms (namely, the so-called soft Pomeron and f-Reggeon contributions). The range of applicability of the considered approximation is determined. The predictive value of the proposed phenomenological scheme is verified.
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