Proton Structure in Transverse Space and the Effective Cross Section

Abstract

The observation of double parton collisions by CDF has provided the first direct information on the structure of the proton in transverse space. The actual quantity which has been measured is the `effective cross section' ${\sigma }_{eff}$, which is related to the transverse size of the region where hard interactions are localized. The actual value which has been measured is sizably smaller than naively expected and it is an indication of important correlation effects in the many-body parton distribution of the proton. We discuss the problem pointing out a possible source of correlations in the proton structure, which could have a significant effect on the value of ${\sigma }_{eff}$.

12 pages, 2 figures

References in corpus (1)

• Minijets and the Two-Body Parton Correlation

Cited by in corpus (66)

• Observation of structure in the $J/\psi$-pair mass spectrum
• Double Parton Distributions Incorporating Perturbative QCD Evolution and Momentum and Quark Number Sum Rules
• Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector
• Double parton interactions in photon+3 jet events in ppbar collisions sqrt{s}=1.96 TeV
• Theoretical considerations on multiparton interactions in QCD
• Determining the Higgs Boson Self Coupling at Hadron Colliders
• Same-sign W pair production as a probe of double parton scattering at the LHC
• A fresh look at double parton scattering
• New structures in the J/$\psi$J/$\psi$ mass spectrum in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Observation of an excess of di-charmonium events in the four-muon final state with the ATLAS detector
• Double parton distributions in the leading logarithm approximation of perturbative QCD
• Observation of Upsilon(1S) pair production in proton-proton collisions at sqrt(s) = 8 TeV
• Observation and studies of double J/psi production at the Tevatron
• Dijet production as a centrality trigger for p-p collisions at CERN LHC
• Measurement of the $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$
• Double parton correlations versus factorized distributions
• Production of two $c\bar{c}$ pairs in double-parton scattering
• A double parton scattering background to Higgs boson production at the LHC
• Measuring Double Parton Distributions in Nucleons at Proton-Nucleus Colliders
• Conventional versus single-ladder-splitting contributions to double parton scattering production of two quarkonia, two Higgs bosons and $c\bar{c}c\bar{c}$
• Production of associated ${\rm Y}$ and open charm hadrons in $pp$ collisions at $\sqrt{s}=7$ and $8$TeV via double parton scattering
• Double parton interactions in photon + 3 jet and photon + b/c jet + 2 jet events in ppbar collisions at sqrt{s}=1.96 TeV
• Scale Factor in Double Parton Collisions and Parton Densities in Transverse Space
• High Energy Physics in the Atmosphere: Phenomenology of Cosmic Ray Air Showers
• Hunting for states in the recent LHCb di-$J/\psi$ invariant mass spectrum
• Producing fully-charm structures in the $J/\psi$-pair invariant mass spectrum
• Correlations in Double Parton Distributions: Perturbative and Non-Perturbative effects
• Double parton scatterings in b-quark pairs production at the LHC
• Double parton scattering, diffraction and effective cross section
• Study of double parton interactions in diphoton + dijet events in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
• Parton correlations in same-sign $W$ pair production via double parton scattering at the LHC
• Testing the Scale Dependence of the Scale Factor in Double Dijet Production at the LHC
• Relativistic effects in model calculations of double parton distribution function
• Double parton scattering: a study of the effective cross section within a Light-Front quark model
• Hadronic structure from double parton scattering
• Toward the non-perturbative description of high energy processes
• Multiple Hard Partonic Collisions with Correlations in Proton-Proton Scattering
• Fully-heavy structures in the invariant mass spectrum of $J/\psi \psi (3686)$, $J/\psi \psi (3770)$, $\psi (3686)\psi (3686)$, and $J/\psi {\rm Y}(1S)$ at hadron colliders
• b \bar b b\bar b production in proton-nucleus collisions at the LHC
• The effective cross section for double parton scattering within a holographic AdS/QCD approach
• Heavy-Quark production in proton-nucleus collision at the LHC
• Possible indication to the QCD evolution of double parton distributions?
• Observation of enhanced double parton scattering in proton-lead collisions at $\sqrt{s_{\mathrm{NN}}}=8.16$ TeV
• Improved understanding of the peaking phenomenon existing in the new di-$J/\psi$ invariant mass spectrum from the CMS Collaboration
• Double parton scattering and the proton transverse structure at the LHC
• Asymptotic behavior of double parton distribution functions
• The pion in the graviton soft-wall model: phenomenological applications
• Double parton correlations in mesons within AdS/QCD soft-wall models: a first comparison with lattice data
• Measurement of $J/\psi$-pair production in $pp$ collisions at $\sqrt{s}=13$ TeV and study of gluon transverse-momentum dependent PDFs
• Associated production of heavy quarkonium and $D-$meson in the improved color evaporation model with KaTie
• Probing double parton scattering via associated open charm and bottom production in ultraperipheral $pA$ collisions
• Double parton scattering in pA collisions at the LHC revisited
• Review of physics results from the Tevatron: QCD physics
• Multiparton interactions and multiparton distributions in QCD
• Associated production of prompt $J/\psi$ and ${\rm Y}$ mesons in $pp$ collisions at $\sqrt{s}=13\mathrm{TeV}$
• Double parton distributions for a positronium-like bound state using light-front wave functions
• Measurement of associated $J/\psi$-$\psi (2S)$ production cross-section in $pp$ collisions at $\sqrt{s}=13$ TeV
• Double parton scattering in four-jet events in pp collisions at 7 TeV with the ATLAS experiment at the LHC
• Four-jet double parton scattering production in proton-nucleus collisions within the PYTHIA8 framework
• Momentum fraction and hard scale dependence of double parton scattering
• On sum rules for double and triple parton distribution functions and Pythia's model of multiple parton interactions
• Multiparton scattering at the LHC
• Double parton scattering and 3D proton structure: A Light-Front analysis
• Four-jet production via double parton scattering in $pA$ collisions at the LHC
• Double Parton Distributions of the Pion
• DPS mechanism for associated $c\bar{c}b\bar{b}$ production in $AA$ UPCs