Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC

Abstract

We compare predictions for the W, Z, gg->H and t-tbar total cross sections at the Large Hadron Collider (LHC), for a centre-of-mass energy of 7 TeV, using the most recent publicly available next-to-leading order and next-to-next-to-leading order parton distribution functions (PDFs) from all PDF fitting groups. In particular, we focus on the dependence on the different values of the strong coupling, alpha_S(M_Z^2), used by each group. We also perform a comparison of the relevant quark-antiquark and gluon-gluon luminosity functions. We make some comments on the recent PDF4LHC recommendations. Finally, we discuss the comparison of data and theory for W and Z cross sections at the LHC.

40 pages, 18 figures. v2: version published in JHEP

References in corpus (26)

• Parton distributions for the LHC
• Vector boson production at hadron colliders: a fully exclusive QCD calculation at NNLO
• -- HATHOR -- HAdronic Top and Heavy quarks crOss section calculatoR
• MCFM for the Tevatron and the LHC
• FEWZ 2.0: A code for hadronic Z production at next-to-next-to-leading order
• Parton Distributions for LO Generators
• Impact of Heavy Quark Masses on Parton Distributions and LHC Phenomenology
• Hard Interactions of Quarks and Gluons: a Primer for LHC Physics
• Measurements of Inclusive W and Z Cross Sections in pp Collisions at sqrt(s)=7 TeV
• Measurement of the top quark-pair production cross section with ATLAS in pp collisions at $\sqrt{s}=7\TeV$
• Dynamical parton distributions of the nucleon and very small-x physics
• Heavy-quark mass dependence in global PDF analyses and 3- and 4-flavour parton distributions
• Measurement of the lepton charge asymmetry in inclusive W production in pp collisions at sqrt(s) = 7 TeV
• Inclusive Heavy Flavor Hadroproduction in NLO QCD: the Exact Analytic Result
• Measurement of the t t-bar production cross section and the top quark mass in the dilepton channel in pp collisions at sqrt(s) =7 TeV
• Addendum to: Predictions for Higgs production at the Tevatron and the associated uncertainties
• On the role of heavy flavor parton distributions at high energy colliders
• Measurement of the differential dijet production cross section in proton-proton collisions at sqrt(s)=7 TeV
• Parton distribution function dependence of benchmark Standard Model total cross sections at the 7 TeV LHC
• Structure Functions
• Measurement of the $W$ Charge Asymmetry in the $W\to \mu \nu$ Decay Mode in $pp$ Collisions at $\sqrt{s}=7$ TeV with the ATLAS detector
• NNLO Benchmarks for Gauge and Higgs Boson Production at TeV Hadron Colliders
• PDF dependence of Higgs cross sections at the Tevatron and LHC: response to recent criticism
• The Tevatron Higgs exclusion limits and theoretical uncertainties: a critical appraisal
• Evaluation of the Theoretical Uncertainties in the W to Lepton and Neutrino Cross Sections at the LHC
• Theoretical Uncertainties in Electroweak Boson Production Cross Sections at 7, 10, and 14 TeV at the LHC

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• LHAPDF6: parton density access in the LHC precision era
• PDF4LHC recommendations for LHC Run II
• Top-pair production at hadron colliders with next-to-next-to-leading logarithmic soft-gluon resummation
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• The CT10 NNLO Global Analysis of QCD
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• Precision measurement and interpretation of inclusive $W^{+}$, $W^{-}$ and $Z/{\gamma }^{\ast }$ production cross sections with the ATLAS detector
• Hadronic top-quark pair-production with one jet and parton showering
• The PDF4LHC report on PDFs and LHC data: Results from Run I and preparation for Run II
• Quantitative constraints on the gluon distribution function in the proton from collider isolated-photon data
• Progress in the Determination of the Partonic Structure of the Proton
• Parton Distribution Benchmarking with LHC Data
• Study of Monte Carlo approach to experimental uncertainty propagation with MSTW 2008 PDFs
• Higgs Boson self-coupling measurements using ratios of cross sections
• Constraints on the gluon PDF from top quark pair production at hadron colliders
• Measurement of inclusive W and Z boson production cross sections in pp collisions at sqrt(s) = 8 TeV
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• Cross Section Ratios between different CM energies at the LHC: opportunities for precision measurements and BSM sensitivity
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• Sensitivity of the LHC isolated-gamma+jet data to the parton distribution functions of the proton
• Higgs decay with monophoton + MET signature from low scale supersymmetry breaking
• Ratios of $W$ and $Z$ cross sections at large boson $p_T$ as a constraint on PDFs and background to new physics
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• Improved nonsinglet QCD analysis of the fixed-target DIS data
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• MSTW PDFs and impact of PDFs on cross sections at Tevatron and LHC
• $t{Z}^{\prime }$ production at hadron colliders
• disorder: Deep inelastic scattering at high orders
• Precision jet measurements at HERA and determination of α_s
• Signature of same-sign top pair production mediated by a nonuniversal $Z^{\prime }$ with QCD next-to-leading accuracy at the LHC
• NLO QCD corrections to same-sign $T$-odd quark pair production in the littlest Higgs model with $T$-parity at the LHC