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Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets

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dc.contributor.authorAad, Georges
dc.contributor.authorAbbott, Brad K.
dc.contributor.authorAbbott, D. C.
dc.contributor.authorAbed Abud, Adam
dc.contributor.authorAbeling, Kira
dc.contributor.authorAbhayasinghe, D. K.
dc.contributor.authorAbidi, Syed Hani
dc.contributor.authorAbouZeid, O. S.
dc.contributor.authorAbraham, Nicola L.
dc.contributor.authorAbramowicz, Halina
dc.contributor.institutionAad, Georges, Centre de Physique des Particules de Marseille, Marseille, France
dc.contributor.institutionAbbott, Brad K., Homer L. Dodge Department of Physics and Astronomy, The University of Oklahoma, Norman, United States
dc.contributor.institutionAbbott, D. C., Department of Physics, University of Massachusetts Amherst, Amherst, United States
dc.contributor.institutionAbed Abud, Adam, Organisation Européenne pour la Recherche Nucléaire, Geneva, Switzerland
dc.contributor.institutionAbeling, Kira, Georg-August-Universität Göttingen, Gottingen, Germany
dc.contributor.institutionAbhayasinghe, D. K., Department of Physics, Royal Holloway, University of London, Egham, United Kingdom
dc.contributor.institutionAbidi, Syed Hani, Brookhaven National Laboratory Physics Department, Upton, United States
dc.contributor.institutionAbouZeid, O. S., Niels Bohr Institutet, Copenhagen, Denmark
dc.contributor.institutionAbraham, Nicola L., University of Sussex, Brighton, United Kingdom
dc.contributor.institutionAbramowicz, Halina, Tel Aviv University, Tel Aviv-Yafo, Israel
dc.date.accessioned2025-10-05T15:31:59Z
dc.date.issued2021
dc.description.abstractThis article presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading order in QCD. The new data sets considered are the measurements of W+ and W− boson and Z boson production in association with jets in pp collisions at s = 8 TeV performed by the ATLAS experiment at the LHC with integrated luminosities of 20.2 fb−1 and 19.9 fb−1, respectively. The analysis also considers the ATLAS measurements of differential W± and Z boson production at s = 7 TeV with an integrated luminosity of 4.6 fb−1 and deep-inelastic-scattering data from e±p collisions at the HERA accelerator. An improved determination of the sea-quark densities at high Bjorken x is shown, while confirming a strange-quark density similar in size to the up- and down-sea-quark densities in the range x ≲ 0.02 found by previous ATLAS analyses. [Figure not available: see fulltext.] © 2021 Elsevier B.V., All rights reserved.
dc.identifier.doi10.1007/JHEP07(2021)223
dc.identifier.issn10298479
dc.identifier.issue7
dc.identifier.scopus2-s2.0-85112650890
dc.identifier.urihttps://doi.org/10.1007/JHEP07(2021)223
dc.identifier.urihttps://hdl.handle.net/20.500.14719/9545
dc.identifier.volume2021
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.oastatusAll Open Access
dc.relation.oastatusGold Open Access
dc.relation.oastatusGreen Accepted Open Access
dc.relation.oastatusGreen Open Access
dc.relation.sourceJournal of High Energy Physics
dc.subject.authorkeywordsHadron-hadron Scattering (experiments)
dc.subject.authorkeywordsQcd
dc.titleDetermination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets
dc.typeArticle
dcterms.referencesEur Phys J C, (2015), Alekhin, Sergey I., Parton distribution functions, αs, and heavy-quark masses for LHC Run II, Physical Review D, 96, 1, (2017), Hou, Tiejiun, New CTEQ global analysis of quantum chromodynamics with high-precision data from the LHC, Physical Review D, 103, 1, (2021), Harland-Lang, Lucian A., Parton distributions in the LHC era: MMHT 2014 PDFs, European Physical Journal C, 75, 5, (2015), Ball, Richard David, Parton distributions from high-precision collider data: NNPDF Collaboration, European Physical Journal C, 77, 10, (2017), undefined, undefined, Aaltonen, Timo, Direct measurement of the W production charge asymmetry in pp̄ collisions at s=1.96TeV, Physical Review Letters, 102, 18, (2009), Abazov, Victor M., Measurement of the electron charge asymmetry in p p ¯ →w+X →eν+X decays in p p ¯ collisions at s =1.96TeV, Physical Review D - Particles, Fields, Gravitation and Cosmology, 91, 3, (2015), Martin, Alan D., Parton distributions for the LHC, European Physical Journal C, 63, 2, pp. 189-285, (2009)
dspace.entity.typePublication
local.indexed.atScopus
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