High-energy elastic diffractive scattering of nucleons in the framework of the two-Reggeon eikonal approximation (from U-70 to LHC)

Abstract Elastic diffractive scattering of nucleons is described in terms Regge-eikonal approach. It demonstrated that, a wide kinematic region (starting from the U-70 energies), eikonal proton–proton can be approximated by sum two Reggeon exchange (namely, so-called soft Pomeron and f -Reggeon contributions). The range applicability considered approximation determined. predictive value proposed phenomenological scheme verified.