Journal article
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.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 2.2MB, Terms of use)
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- Publisher copy:
- 10.1007/JHEP07(2021)223
- Publisher:
- Elsevier
- Journal:
- JHEP Reports More from this journal
- Volume:
- 2021
- Issue:
- 7
- Article number:
- 223
- Publication date:
- 2021-07-29
- Acceptance date:
- 2021-07-01
- DOI:
- EISSN:
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2589-5559
- Language:
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English
- Keywords:
- Pubs id:
-
1184549
- Local pid:
-
pubs:1184549
- Deposit date:
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2021-07-01
Terms of use
- Copyright holder:
- Aad et al.
- Copyright date:
- 2021
- Rights statement:
- Copyright © 2021, The Author(s). Open Access. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
- Licence:
- CC Attribution (CC BY)
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