High-precision measurements by the ATLAS Collaboration are presented of inclusive W+→ℓ+νW+→ℓ-$$\bar{v}$$ and Z/γ*→ℓℓ (ℓ = e,μ) Drell-Yan production cross sections at the LHC. The data were collected in proton–proton collisions at s√=7 TeV with an integrated luminosity of 4.6 fb-1. Differential W+W- cross sections are measured in a lepton pseudorapidity range |ηℓ| <2.5. Differential Z/γ* cross sections are measured as a function of the absolute dilepton rapidity, for |yℓℓ|<3.6, for three intervals of dilepton mass, mℓℓ, extending from 46 to 150 GeV. The integrated and differential electron- and muon-channel cross sections are combined and compared to theoretical predictions using recent sets of parton distribution functions. The data, together with the final inclusive e ± p scattering cross-section data from H1 and ZEUS, are interpreted in a next-to-next-to-leading-order QCD analysis, and a new set of parton distribution functions, ATLAS-epWZ16, is obtained. The ratio of strange-to-light sea-quark densities in the proton is determined more accurately than in previous determinations based on collider data only, and is established to be close to unity in the sensitivity range of the data. Lastly, a new measurement of the CKM matrix element |Vcs| is also provided.
Aaboud, M., et al. "Precision measurement and interpretation of inclusive <em>W</em><sup>+</sup> <em>W</em><sup>-</sup> <em>Z</em>/γ* production cross sections with the ATLAS detector." European Physical Journal. C, Particles and Fields, vol. 77, no. 6, Jun. 2017. https://doi.org/10.1140/epjc/s10052-017-4911-9
Aaboud, M., Aad, G., Abbott, B., Abdallah, J., Abdinov, O., Abeloos, B., AbouZeid, O. S., Abraham, N. L., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adams, D. L., Adelman, J., Adomeit, S., ... Zwalinski, L. (2017). Precision measurement and interpretation of inclusive <em>W</em><sup>+</sup> <em>W</em><sup>-</sup> <em>Z</em>/γ* production cross sections with the ATLAS detector. European Physical Journal. C, Particles and Fields, 77(6). https://doi.org/10.1140/epjc/s10052-017-4911-9
Aaboud, M., Aad, G., Abbott, B., et al., "Precision measurement and interpretation of inclusive <em>W</em><sup>+</sup> <em>W</em><sup>-</sup> <em>Z</em>/γ* production cross sections with the ATLAS detector," European Physical Journal. C, Particles and Fields 77, no. 6 (2017), https://doi.org/10.1140/epjc/s10052-017-4911-9
@article{osti_1390246,
author = {Aaboud, M. and Aad, G. and Abbott, B. and Abdallah, J. and Abdinov, O. and Abeloos, B. and AbouZeid, O. S. and Abraham, N. L. and Abramowicz, H. and Abreu, H. and others},
title = {Precision measurement and interpretation of inclusive <em>W</em><sup>+</sup> <em>W</em><sup>-</sup> <em>Z</em>/γ* production cross sections with the ATLAS detector},
annote = {High-precision measurements by the ATLAS Collaboration are presented of inclusive W+→ℓ+νW+→ℓ-$\bar{v}$ and Z/γ*→ℓℓ (ℓ = e,μ) Drell-Yan production cross sections at the LHC. The data were collected in proton–proton collisions at s√=7 TeV with an integrated luminosity of 4.6 fb-1. Differential W+W- cross sections are measured in a lepton pseudorapidity range |ηℓ| ℓℓ|ℓℓ, extending from 46 to 150 GeV. The integrated and differential electron- and muon-channel cross sections are combined and compared to theoretical predictions using recent sets of parton distribution functions. The data, together with the final inclusive e ± p scattering cross-section data from H1 and ZEUS, are interpreted in a next-to-next-to-leading-order QCD analysis, and a new set of parton distribution functions, ATLAS-epWZ16, is obtained. The ratio of strange-to-light sea-quark densities in the proton is determined more accurately than in previous determinations based on collider data only, and is established to be close to unity in the sensitivity range of the data. Lastly, a new measurement of the CKM matrix element |Vcs| is also provided.},
doi = {10.1140/epjc/s10052-017-4911-9},
url = {https://www.osti.gov/biblio/1390246},
journal = {European Physical Journal. C, Particles and Fields},
issn = {ISSN 1434-6044},
number = {6},
volume = {77},
place = {United States},
publisher = {Springer},
year = {2017},
month = {06}}
Harvard Univ., Cambridge, MA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Organization:
USDOE Office of Science (SC); USDOE Office of Science (SC), High Energy Physics (HEP)
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DEEP INELASTIC SCATTERING: 13th International Workshop on Deep Inelastic Scattering; DIS 2005, AIP Conference Proceedingshttps://doi.org/10.1063/1.2122026