Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets
Entity
UAM. Departamento de Física TeóricaPublisher
SpringerDate
2021-07-29Citation
10.1007/JHEP07(2021)223
Journal of High Energy Physics 7 (2021): 223
ISSN
1126-6708 (print); 1029-8479 (online)DOI
10.1007/JHEP07(2021)223Editor's Version
https://doi.org/10.1007/JHEP07(2021)223Subjects
Boson; Partons; Higgs Bosons; FísicaNote
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAMRights
© 2021, The Author(s)Abstract
This 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
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Google Scholar:Aad, G.
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ATLAS Collaboration
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Álvarez Estévez, Manuel
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Barreiro Alonso, Fernando
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Calvente López, Sergio
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Camarero Muñoz, Daniel
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Peso Malagón, José del
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Glasman Kuguel, Claudia Beatriz
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Terrón Cuadrado, Juan
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