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Determination of the parton distribution functions of the proton using diverse ATLAS data from $pp$ collisions at $\sqrt{s} = 7$, 8 and 13 TeV
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abstract
This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in $pp$ collisions at $\sqrt{s} = 7$, 8 and 13 TeV, performed by the ATLAS experiment at the Large Hadron Collider, together with deep inelastic scattering data from $ep$ collisions at the HERA collider. The ATLAS data sets considered are differential cross-section measurements of inclusive $W^{\pm}$ and $Z/\gamma^*$ boson production, $W^{\pm}$ and $Z$ boson production in association with jets, $t\bar{t}$ production, inclusive jet production and direct photon production. In the analysis, particular attention is paid to the correlation of systematic uncertainties within and between the various ATLAS data sets and to the impact of model, theoretical and parameterisation uncertainties. The resulting set of parton distribution functions is called ATLASpdf21
Forward citations
Cited by 4 Pith papers
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Measurement of $W^{\pm}$-boson differential cross-sections in proton-proton collisions with low pile-up data at $\sqrt{s} = 5.02$ TeV and $13$ TeV with the ATLAS detector
ATLAS reports new high-precision W-boson differential cross sections at 5.02 and 13 TeV, consistent with Standard Model predictions and useful for profiling proton parton distribution functions.
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Parton distributions confront LHC Run II data: a quantitative appraisal
A systematic NNLO data-theory comparison shows that the main PDF sets generalise to unseen LHC and HERA data about equally well once PDF, alpha_s, and missing higher order uncertainties are included.
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Revisiting constraints on proton PDFs from HERA DIS, Drell-Yan, W/Z Boson production, and projected EIC measurements
A new NLO and NNLO global QCD fit to HERA, Drell-Yan, and W/Z data yields proton PDFs, a strange-sea ratio near 1.07, and projections that EIC data would reduce gluon and alpha_s uncertainties.
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