Effects of gluon number fluctuations on photon - photon collisions at high energies
arXiv:1207.4779 · doi:10.1103/PhysRevD.86.054019
Abstract
We investigate the effects of gluon number fluctuations on the total , cross sections and the photon structure function . Considering a model which relates the dipole-dipole and dipole-hadron scattering amplitudes, we estimate these observables by using event-by-event and physical amplitudes. We demonstrate that both analyses are able to describe the LEP data, but predict different behaviours for the observables at high energies, with the gluon fluctuations effects decreasing the cross sections. We conclude that the study of interactions can be useful to constrain the QCD dynamics.
9 pages, 6 figures. Improved version with two new figures. Version to be published in Physical Review D
References in corpus (18)
- The Color Glass Condensate
- Non-linear QCD meets data: A global analysis of lepton-proton scattering with running coupling BK evolution
- Saturation QCD predictions with heavy quarks at HERA
- Particle multiplicities in Lead-Lead collisions at the LHC from non-linear evolution with running coupling
- Systematics of geometric scaling
- Solution for the BFKL Pomeron Calculus in zero transverse dimensions
- On possible implications of gluon number fluctuations in DIS data
- Pomeron loop and running coupling effects in high energy QCD evolution
- On the probability distribution of the stochastic saturation scale in QCD
- A zero-dimensional model for high-energy scattering in QCD
- One-dimensional model for QCD at high energy
- Systematic Analysis of Scaling Properties in Deep Inelastic Scattering
- Travelling waves and impact-parameter correlations
- Geometric Scaling in Mueller-Navelet Jets
- Non-linear QCD dynamics in two-photon interactions at high energies
- On pomeron loop effects in deep inelastic scattering
- DIS and the effects of fluctuations: a momentum space analysis
- Resummation of projectile-target multiple scatterings and parton saturation