Nonlinear effects and the behavior of total hadronic and photonic cross sections

Abstract

In this work we use an eikonalized minijet model where the effects of the first nonlinear corrections to the DGLAP equations are taken into account. The contributions coming from gluon recombination effects are included in the DGLAP+GLRMQ approach for the free proton in the context of saturation models. The parameters of the model are fixed to fit total $pp$ and $\bar{p}p$ cross sections, including the very recent data from LHC, HiRes and P. Auger Collaborations. Glauber and multiple scattering approximations are then used to describe the inclusive inelastic proton-Air cross section. Photoproduction cross sections, without change of parameters fixed before, are also obtained from the model using Vector Meson Dominance and the Additive Quark Model. We show and discuss our main results as well as the implications of saturation effects in the behavior of total hadronic and photonic cross sections at very high energies.

9 pages, 4 (new) figures, 1 (new) table; Minor changes to match published version in PRD

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Cited by in corpus (6)

• Introduction to the physics of the total cross-section at LHC: A Review of Data and Models
• Non-perturbative QCD effects in forward scattering at LHC
• Effect of the parameterization of the distribution functions on the longitudinal structure function at small $x$
• Collinear approach for top quark production at ep colliders
• p-air production cross-section and uncorrelated mini-jets processes in pp-scattering
• Impact of the inelastic proton -- nucleus cross section on the prompt neutrino flux