Parton Distribution Benchmarking with LHC Data

Abstract

We present a detailed comparison of the most recent sets of NNLO PDFs from the ABM, CT, HERAPDF, MSTW and NNPDF collaborations. We compare parton distributions at low and high scales and parton luminosities relevant for LHC phenomenology. We study the PDF dependence of LHC benchmark inclusive cross sections and differential distributions for electroweak boson and jet production in the cases in which the experimental covariance matrix is available. We quantify the agreement between data and theory by computing the chi2 for each data set with all the various PDFs. PDF comparisons are performed consistently for common values of the strong coupling. We also present a benchmark comparison of jet production at the LHC, comparing the results from various available codes and scale settings. Finally, we discuss the implications of the updated NNLO PDF sets for the combined PDF+alphaS uncertainty in the gluon fusion Higgs production cross section.

52 pages, 22 figures, accepted for publication in JHEP

References in corpus (17)

• Parton distributions for the LHC
• New parton distributions for collider physics
• Parton distributions with LHC data
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• NNLO corrections to top-pair production at hadron colliders: the all-fermionic scattering channels
• NNLO corrections to top pair production at hadron colliders: the quark-gluon reaction
• Hard Interactions of Quarks and Gluons: a Primer for LHC Physics
• Measurement of the inclusive jet cross section in $p\bar{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$
• vh@nnlo - Higgs Strahlung at hadron colliders
• Determination of the strange quark density of the proton from ATLAS measurements of the W->l nu and Z->ll cross sections
• Quantitative constraints on the gluon distribution function in the proton from collider isolated-photon data
• Study of Monte Carlo approach to experimental uncertainty propagation with MSTW 2008 PDFs
• Weak radiative corrections to dijet production at hadron colliders
• Inclusive $W$ and $Z$ production in the forward region at $\sqrt{s}=7$ TeV
• Measurement of the electron charge asymmetry in inclusive W production in pp collisions at sqrt(s) = 7 TeV
• Extended Parameterisations for MSTW PDFs and their effect on Lepton Charge Asymmetry from W Decays
• MEKS: a program for computation of inclusive jet cross sections at hadron colliders

Cited by in corpus (72)

• Parton distributions for the LHC Run II
• PDF4LHC recommendations for LHC Run II
• New parton distribution functions from a global analysis of quantum chromodynamics
• New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC
• Parton distributions with QED corrections
• QCD and strongly coupled gauge theories: challenges and perspectives
• The CT10 NNLO Global Analysis of QCD
• APFEL: A PDF Evolution Library with QED corrections
• String Formation Beyond Leading Colour
• The ABM parton distributions tuned to LHC data
• Parton distributions and lattice QCD calculations: a community white paper
• The Structure of the Proton in the LHC Precision Era
• The PDF4LHC21 combination of global PDF fits for the LHC Run III
• A guide to light-cone PDFs from Lattice QCD: an overview of approaches, techniques and results
• A determination of the fragmentation functions of pions, kaons, and protons with faithful uncertainties
• Searches for Higgs boson pair production in the $hh\to bb\tau \tau ,\gamma \gamma WW\ast ,\gamma \gamma bb,bbbb$ channels with the ATLAS detector
• Transverse-momentum-dependent parton distributions up to N${}^3$LL from Drell-Yan data
• Non-perturbative structure of semi-inclusive deep-inelastic and Drell-Yan scattering at small transverse momentum
• The PDF4LHC report on PDFs and LHC data: Results from Run I and preparation for Run II
• A meta-analysis of parton distribution functions
• Progress in the Determination of the Partonic Structure of the Proton
• Higgs Boson self-coupling measurements using ratios of cross sections
• An Unbiased Hessian Representation for Monte Carlo PDFs
• Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production
• Extraction of unpolarized quark transverse momentum dependent parton distributions from Drell-Yan/Z-boson production
• Measurements of the W production cross sections in association with jets with the ATLAS detector
• Measurement of the differential and double-differential Drell-Yan cross sections in proton-proton collisions at sqrt(s) = 7 TeV
• Constraints on the gluon PDF from top quark pair production at hadron colliders
• Snowmass 2021 whitepaper: Proton structure at the precision frontier
• Measurement of associated W + charm production in pp collisions at sqrt(s) = 7 TeV
• Hadron structure in high-energy collisions
• Nuclear Parton Distributions from Lepton-Nucleus Scattering and the Impact of an Electron-Ion Collider
• Systematic uncertainties in parton distribution functions from lattice QCD simulations at the physical point
• Measurements of differential and double-differential Drell-Yan cross sections in proton-proton collisions at 8 TeV
• aMCfast: automation of fast NLO computations for PDF fits
• APFEL Web: a web-based application for the graphical visualization of parton distribution functions
• Constraints on parton distribution functions and extraction of the strong coupling constant from the inclusive jet cross section in pp collisions at sqrt(s) = 7 TeV
• Pinning down the large-x gluon with NNLO top-quark pair differential distributions
• nNNPDF2.0: Quark Flavor Separation in Nuclei from LHC Data
• Towards Ultimate Parton Distributions at the High-Luminosity LHC
• Precision determination of the strong coupling constant within a global PDF analysis
• Parton distributions with threshold resummation
• Parton distributions in the SMEFT from high-energy Drell-Yan tails
• PDF bias and flavor dependence in TMD distributions
• Publishing statistical models: Getting the most out of particle physics experiments
• Neutrino Structure Functions from GeV to EeV Energies
• Pion-induced Drell-Yan processes within TMD factorization
• Phenomenology of NNLO jet production at the LHC and its impact on parton distributions
• Mapping the sensitivity of hadronic experiments to nucleon structure
• Why ${\alpha }_s$ Cannot be Determined from Hadronic Processes without Simultaneously Determining the Parton Distributions
• Direct photon production and PDF fits reloaded
• Ratios of $W$ and $Z$ cross sections at large boson $p_T$ as a constraint on PDFs and background to new physics
• Parton distributions need representative sampling
• Global analysis of fragmentation functions to charged hadrons with high-precision data from the LHC
• The Effect of LHC Jet Data on MSTW PDFs
• Small- and large-x nucleon spin structure from a global QCD analysis of polarized Parton Distribution Functions
• An investigation of the ${\alpha }_S$ and heavy quark mass dependence in the MSHT20 global PDF analysis
• Correlation of Theoretical Uncertainties in PDF Fits and Theoretical Uncertainties in Predictions
• Higgs Boson Cross Section from CTEQ-TEA Global Analysis
• Parton distributions with scale uncertainties: a MonteCarlo sampling approach
• Simultaneous CTEQ-TEA extraction of PDFs and SMEFT parameters from jet and $t\bar{t}$ data
• Towards a new generation of parton densities with deep learning models
• Feasibility of top quark measurements at LHCb and constraints on the large-$x$ gluon PDF
• Probing Proton Structure at the Large Hadron electron Collider
• Bayesian reweighting of nuclear PDFs and constraints from proton-lead collisions at the LHC
• QCD analysis of structure functions in deep inelastic neutrino-nucleon scattering without using the orthogonal polynomials approach
• Review of single vector boson production in pp collisions at $\sqrt{s}=7$ TeV
• Nucleon microscopy in proton-nucleus scattering via analysis of bremsstrahlung emission
• Measurement of neutral current e+/-p cross sections at high Bjorken x with the ZEUS detector
• A data-based parametrization of parton distribution functions
• Differentiating the production mechanisms of the Higgs-like resonance using inclusive observables at hadron colliders
• Combination of aN${}^3$LO PDFs and implications for Higgs production cross-sections at the LHC