Constraining double parton correlations and interferences

Abstract

Double parton scattering (DPS) has become very relevant as a background to interesting analyses performed by the experiments at the LHC. It encodes knowledge of correlations between the proton constituents not accessible in single parton scattering. Within perturbative QCD DPS is described in terms of partonic subprocesses and double parton distributions (DPDs). There exists a large number of different DPDs describing the different possible states of two partons inside a proton. They include correlations between the two partons and interferences between the two hard subprocesses. Taking the probability interpretation of the DPDs as starting point, we derive limits on the interference DPDs and thereby constrain the size of correlations between two partons inside an unpolarized proton.

10 pages, 1 figure

References in corpus (26)

• JaxoDraw: A graphical user interface for drawing Feynman diagrams
• Evolution of Color Exchange in QCD Hard Scattering
• Positivity Constraints for Spin-Dependent Parton Distributions
• Measurement of hard double-parton interactions in W->lv+ 2 jet events at sqrt(s)=7 TeV with the ATLAS detector
• Elements of a theory for multiparton interactions in QCD
• Theoretical considerations on multiparton interactions in QCD
• Bounds on transverse momentum dependent distribution and fragmentation functions
• The four jet production at LHC and Tevatron in QCD
• Spin densities in the transverse plane and generalized transversity distributions
• Perturbative QCD correlations in multi-parton collisions
• Same-sign W pair production as a probe of double parton scattering at the LHC
• A QCD Analysis of Double Parton Scattering: Color Correlations, Interference Effects and Evolution
• Study of double parton scattering using W + 2-jet events in proton-proton collisions at sqrt(s) = 7 TeV
• Double parton correlations in constituent quark models
• ColorMath - A package for color summed calculations in SU(Nc)
• Production of two $c\bar{c}$ pairs in double-parton scattering
• Double Parton Correlations in the Bag Model
• Correlations in double parton distributions: effects of evolution
• Conventional versus single-ladder-splitting contributions to double parton scattering production of two quarkonia, two Higgs bosons and $c\bar{c}c\bar{c}$
• Orthogonal multiplet bases in SU(Nc) color space
• Production of $c\bar{c}c\bar{c}$ in double-parton scattering within $k_t$-factorization approach -- meson-meson correlations
• Valence double parton distributions of the nucleon in a simple model
• Dijet Rapidity Gaps in Photoproduction from Perturbative QCD
• Angular correlations in the double Drell-Yan process
• Single-parton scattering versus double-parton scattering in the production of two $c\bar{c}$ pairs and charmed meson correlations at the LHC
• Positivity bounds on double parton distributions

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• Measurement of the prompt $J/\psi$ pair production cross-section in $pp$ collisions at $\sqrt{s}=8$ TeV with the ATLAS detector
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• Generalized Valon Model for Double Parton Distributions
• Phenomenological analysis of associated production of $Z^0+b$ in the $b\to J/\psi X$ decay channel at the LHC
• Double parton distribution of valence quarks in the pion in chiral quark models
• Double parton scattering and the proton transverse structure at the LHC
• Probing impact-parameter dependent nuclear parton densities from double parton scatterings in heavy-ion collisions
• Can the triple-parton scattering be observed in open charm meson production at the LHC?
• Two-loop splitting in double parton distributions: the colour non-singlet case
• Double parton distributions out of bounds in colour space
• Directed flow from parton spin-orbit coupling in $pp$ and $pA$ collisions
• Scale evolution of double parton correlations