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

ATLAS Publications; T.M. Carter; A. Hasib; M.P. Heath; S. Palazzo; A. Søgaard; E.P. Takeva; N. Themistokleous; E.M. Villhauer

doi:10.1007/JHEP07(2021)223

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

ATLAS Publications, T.M. Carter, A. Hasib, M.P. Heath, S. Palazzo, A. Søgaard, E.P. Takeva, N. Themistokleous, E.M. Villhauer

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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 = 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 = 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.

Original language	English
Article number	223
Pages (from-to)	1-43
Number of pages	43
Journal	Journal of High Energy Physics
Volume	2021
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2021)223
Publication status	Published - 29 Jul 2021

Keywords / Materials (for Non-textual outputs)

Hadron-Hadron scattering (experiments)

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10.1007/JHEP07(2021)223Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2101.05095

1 Active
5 Finished

Upgrade of the ATLAS detector at the LHC (2023-26)
Clark, P. (Principal Investigator)
1/04/23 → 31/03/26
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C. (Principal Investigator)
1/10/22 → 30/09/25
Project: Research

Cite this

ATLAS Publications, Carter, T. M., Hasib, A., Heath, M. P., Palazzo, S., Søgaard, A., Takeva, E. P., Themistokleous, N., & Villhauer, E. M. (2021). Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets. Journal of High Energy Physics, 2021(7), 1-43. Article 223. https://doi.org/10.1007/JHEP07(2021)223

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

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 = 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 = 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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doi = "10.1007/JHEP07(2021)223",

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ATLAS Publications, Carter, TM, Hasib, A, Heath, MP, Palazzo, S, Søgaard, A, Takeva, EP, Themistokleous, N & Villhauer, EM 2021, 'Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets', Journal of High Energy Physics, vol. 2021, no. 7, 223, pp. 1-43. https://doi.org/10.1007/JHEP07(2021)223

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T1 - Determination of the parton distribution functions of the proton from ATLAS measurements of differential W± and Z boson production in association with jets

AU - ATLAS Publications

AU - Clark, Philip James

AU - Farrington, Sinead

AU - Gao, Yanyan

AU - Leonidopoulos, Christos

AU - Martin, Victoria Jane

AU - Mijovic, Liza

AU - Wynne, Benjamin

AU - Carter, T.M.

AU - Hasib, A.

AU - Heath, M.P.

AU - Palazzo, S.

AU - Søgaard, A.

AU - Takeva, E.P.

AU - Themistokleous, N.

AU - Villhauer, E.M.

PY - 2021/7/29

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N2 - 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 = 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 = 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.

AB - 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 = 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 = 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.

KW - Hadron-Hadron scattering (experiments)

U2 - 10.1007/JHEP07(2021)223

DO - 10.1007/JHEP07(2021)223

M3 - Article

SN - 1029-8479

VL - 2021

SP - 1

EP - 43

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 223

ER -

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

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Upgrade of the ATLAS detector at the LHC (2023-26)

Experimental Particle Physics at the University of Edinburgh

Experimental Particle Physics at the University of Edinburgh

Cite this