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

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.

Automated summary

In this study, elastic diffractive scattering of nucleons is described using the Regge-eikonal approach, showing how the eikonal of proton-proton scattering can be approximated by the sum of two Reggeon exchange terms. The range of applicability of this approximation is determined, and the predictive value of the proposed phenomenological scheme is verified.