Origins of parton correlations in nucleon and multi-parton collisions

Abstract

We demonstrate that perturbative QCD leads to positive 3D parton--parton correlations inside nucleon explaining a factor two enhancement of the cross section of multi-parton interactions observed at Tevatron at $x_i\ge 0.01$ as compared to the predictions of the independent parton approximation. We also find that though perturbative correlations decrease with $x$ decreasing, the nonperturbative mechanism kicks in and should generate correlation which, at $x$ below $10^{-3}$, is comparable in magnitude with the perturbative one for $x\sim 0.01$.

arXiv comment4 pages, 5 figures

Cited by in corpus (8)

• Single Perturbative Splitting Diagrams in Double Parton Scattering
• Underlying event sensitive observables in Drell-Yan production using GENEVA
• Single and double inclusive forward jet production at the LHC at $\sqrt{s}$ = 7 and 13 TeV
• Double parton scattering: Impact of nonperturbative parton correlations
• Double parton scattering in four-jet events in pp collisions at 7 TeV with the ATLAS experiment at the LHC
• Summary of the Workshop on Multi-Parton Interactions (MPI@LHC 2012)
• Four-jet double parton scattering production in proton-nucleus collisions within the PYTHIA8 framework
• Soft Gluons and Jets at the LHC