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The European Physical Journal C

, Volume 66, Issue 1–2, pp 137–146 | Cite as

Testing non-linear evolution with running coupling corrections in ep and pp collisions

  • M. A. Betemps
  • V. P. GonçalvesEmail author
  • J. T. de Santana Amaral
Regular Article - Theoretical Physics

Abstract

Perturbative QCD predicts that the growth of the gluon density at small x (high energies) should saturate, forming a Color Glass Condensate (CGC), which is described in mean field approximation by the Balitsky–Kovchegov (BK) equation. Recently, the next-to-leading order corrections for the BK equation were derived and a global fit of the inclusive ep HERA data was performed, resulting in a parameterization for the forward scattering amplitude. In this paper we compare this parameterization with the predictions of other phenomenological models and investigate the saturation physics in diffractive deep-inelastic electron–proton scattering and in the forward hadron production in pp collisions. Our results demonstrate that the running coupling BK solution is able to describe these observables.

Keywords

ZEUS Collaboration Color Glass Condensate Saturation Scale Proton Structure Function Dipole Cross Section 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag / Società Italiana di Fisica 2009

Authors and Affiliations

  • M. A. Betemps
    • 1
    • 2
  • V. P. Gonçalves
    • 2
    Email author
  • J. T. de Santana Amaral
    • 2
  1. 1.Conjunto Agrotécnico Visconde da Graça (CAVG)Universidade Federal de PelotasPelotasBrazil
  2. 2.High and Medium Energy Group (GAME), Instituto de Física e MatemáticaUniversidade Federal de PelotasPelotasBrazil

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