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Precision measurement and interpretation of inclusive W+ , W- and Z/ γ∗ production cross sections with the ATLAS detector

, ; Aaboud, M; Åkesson, Torsten LU ; Bocchetta, Simona LU ; Bryngemark, Lene LU ; Doglioni, Caterina LU ; Hedberg, Vincent LU ; Jarlskog, Göran LU ; Lytken, Else LU and Mjörnmark, Ulf LU , et al. (2017) In European Physical Journal C 77(6).
Abstract
High-precision measurements by the ATLAS Collaboration are presented of inclusive W+→ ℓ+ν, W-→ ℓ-ν¯ 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=7TeV with an integrated luminosity of 4.6fb-1. Differential W+ and 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 | yℓ ℓ| < 3.6 , for three intervals of dilepton mass, mℓ ℓ, extending from 46 to 150GeV. The integrated and differential electron- and muon-channel cross sections are combined and compared to theoretical predictions using recent sets of parton distribution functions.... (More)
High-precision measurements by the ATLAS Collaboration are presented of inclusive W+→ ℓ+ν, W-→ ℓ-ν¯ 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=7TeV with an integrated luminosity of 4.6fb-1. Differential W+ and 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 | yℓ ℓ| < 3.6 , for three intervals of dilepton mass, mℓ ℓ, extending from 46 to 150GeV. 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. A new measurement of the CKM matrix element | Vc s| is also provided. © 2017, CERN for the benefit of the ATLAS collaboration. (Less)
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European Physical Journal C
volume
77
issue
6
publisher
Springer Berlin Heidelberg
external identifiers
  • scopus:85027074552
ISSN
1434-6044
DOI
10.1140/epjc/s10052-017-4911-9
language
English
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yes
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0ff6c5e2-73b3-492f-aca3-2ddadea024e2
date added to LUP
2018-09-27 10:56:03
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2019-07-16 03:56:23
@article{0ff6c5e2-73b3-492f-aca3-2ddadea024e2,
  abstract     = {High-precision measurements by the ATLAS Collaboration are presented of inclusive W+→ ℓ+ν, W-→ ℓ-ν¯ 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=7TeV with an integrated luminosity of 4.6fb-1. Differential W+ and W- cross sections are measured in a lepton pseudorapidity range | ηℓ| &lt; 2.5. Differential Z/ γ∗ cross sections are measured as a function of the absolute dilepton rapidity, for | yℓ ℓ| &lt; 3.6 , for three intervals of dilepton mass, mℓ ℓ, extending from 46 to 150GeV. 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. A new measurement of the CKM matrix element | Vc s| is also provided. © 2017, CERN for the benefit of the ATLAS collaboration.},
  author       = {,  and Aaboud, M and Åkesson, Torsten and Bocchetta, Simona and Bryngemark, Lene and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr},
  issn         = {1434-6044},
  language     = {eng},
  number       = {6},
  publisher    = {Springer Berlin Heidelberg},
  series       = {European Physical Journal C},
  title        = {Precision measurement and interpretation of inclusive W+ , W- and Z/ γ∗ production cross sections with the ATLAS detector},
  url          = {http://dx.doi.org/10.1140/epjc/s10052-017-4911-9},
  volume       = {77},
  year         = {2017},
}