Regge Phenomenology at LHC Energies

Abstract

At high energies the Pomeron plays a crucial part in describing the soft interactions. In the light of LHC (Large Hadron Collider ) data we perform a detailed analysis of protonproton (pp) and antiproton-proton (pp) forward scattering data in order to determine the intercept and the slope of the soft Pomeron trajectory. This analysis is performed based on Regge theory using Born-level amplitudes. We investigate the role of the protonPomeron vertex form and of the nearest t-channel singularity. We give predictions for the total cross section and the ratio of the real part to the imaginary part of the elastic amplitude in pp collisions at LHC and cosmic-ray energies.