The European Physical Journal C

, Volume 51, Issue 3, pp 659–676 | Cite as

Proton–proton interaction in constituent quarks model at LHC energies

  • S. BondarenkoEmail author
  • E. Levin
Regular Article - Theoretical Physics


In this paper we consider soft processes at LHC energies in the framework of the constituent quark model. We show that this rather naive model is able to describe all available soft process data at lower energies and to predict the behavior of the total cross section, the elastic and diffractive cross sections at LHC energy. It turns out that the “input” pomeron that has been used in this approach has parameters that are close to the so called “hard” pomeron with rather large intercept Δ≈0.12 and small value of the slope α P≈0.08 GeV-2. We show that the elastic amplitude has a minimum at impact parameter b=0 and a maximum at b≈2 GeV-1. Such a behavior is the result of overlapping of the parton clouds that belong to the different quarks in the hadron.


Total Cross Section Impact Parameter Constituent Quark Elastic Cross Section Constituent Quark Model 
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© Springer-Verlag / Società Italiana di Fisica 2007

Authors and Affiliations

  1. 1.II Theory InstituteHamburg UniversityHamburgGermany
  2. 2.HEP Department, School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact ScienceTel-Aviv UniversityRamat AvivIsrael

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