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

Physics

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Experimental Particle Physics

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https://doi.org/10.1007/JHEP07(2021)223
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Keywords

Hadron-Hadron scattering (experiments), QCD

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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. / ATLAS Collaboration.
In: Journal of High Energy Physics, Vol. 2021, No. 7, 223, 29.07.2021.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Bibtex

@article{1c57d1646c6a4db18010cd6cacb16bd8,

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 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.] ",

keywords = "Hadron-Hadron scattering (experiments), QCD",

author = "{ATLAS Collaboration} and A.E. Barton and I.A. Bertram and G. Borissov and E.V. Bouhova-Thacker and James Ferrando and H. Fox and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and R.E. Long and P.A. Love and D. Muenstermann and Izaac Sanderswood and M. Smizanska and A.S. Tee and A.M. Wharton and B.W. Whitmore and Melissa Yexley",

year = "2021",

month = jul,

day = "29",

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

language = "English",

volume = "2021",

journal = "Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer-Verlag",

number = "7",

}

RIS

TY - JOUR

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 Collaboration

AU - Barton, A.E.

AU - Bertram, I.A.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Ferrando, James

AU - Fox, H.

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Long, R.E.

AU - Love, P.A.

AU - Muenstermann, D.

AU - Sanderswood, Izaac

AU - Smizanska, M.

AU - Tee, A.S.

AU - Wharton, A.M.

AU - Whitmore, B.W.

AU - Yexley, Melissa

PY - 2021/7/29

Y1 - 2021/7/29

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 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.]

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 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.]

KW - Hadron-Hadron scattering (experiments)

KW - QCD

U2 - 10.1007/JHEP07(2021)223

DO - 10.1007/JHEP07(2021)223

M3 - Journal article

VL - 2021

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

SN - 1029-8479

IS - 7

M1 - 223

ER -

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