Cover Image

Measurement of the W → ℓν and Z/γ* → ℓℓ production cross sections in proton-proton collisions at √s = 7 TeV with the ATLAS detector

Show other versions (428)

First measurements of the W → ℓν and Z/γ*→ ℓℓ (ℓ = e, μ) production cross sections in proton-proton collisions at $ \sqrt {s} = 7\;{\text{TeV}} $are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W → ℓν and 179 Z/γ* → ℓℓ candidate events selected from...

Full description

Saved in:
Bibliographic Details
Main Authors: Aad, Georges (Author) , Andrei, George Victor (Author) , Dietzsch, Thorsten (Author) , Hanke, Paul (Author) , Khomich, Andrei (Author) , Kluge, Eike-Erik (Author) , Kugel, Andreas (Author) , Männer, Reinhard (Author) , Meier, Karlheinz (Author) , Müller, Felix (Author) , Poddar, Sahill (Author) , Radescu, Voica (Author) , Schätzel, Sebastian (Author) , Scharf, Veit (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Stamen, Rainer (Author) , Wessels, Martin (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 14 December 2010
In: Journal of high energy physics
Year: 2010, Pages: 1-65
ISSN:1029-8479
DOI:10.1007/JHEP12(2010)060
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP12(2010)060
Get full text
Author Notes:The ATLAS Collaboration*
Description
Summary:First measurements of the W → ℓν and Z/γ*→ ℓℓ (ℓ = e, μ) production cross sections in proton-proton collisions at $ \sqrt {s} = 7\;{\text{TeV}} $are presented using data recorded by the ATLAS experiment at the LHC. The results are based on 2250 W → ℓν and 179 Z/γ* → ℓℓ candidate events selected from a data set corresponding to an integrated luminosity of approximately 320 nb. The measured total W and Z/γ∗-boson production cross sections times the respective leptonic branching ratios for the combined electron and muon channels are $ \sigma_W^{\text{tot}} $. BR(W → ℓν) = 9.96 ± 0.23(stat) ± 0.50(syst) ± 1.10(lumi) nb and $ \sigma_{{{Z} \left/ {\gamma } \right.}}^{\text{tot}} $BR(Z/γ∗ → ℓℓ) = 0.82 ± 0.06 (stat) ± 0.05 (syst) ± 0.09(lumi) nb (within the invariant mass window 66 < mℓℓ< 116GeV). The W/Z cross-section ratio is measured to be 11.7 ± 0.9(stat) ± 0.4(syst). In addition, measurements of the W+ and W− production cross sections and of the lepton charge asymmetry are reported. Theoretical predictions based on NNLO QCD calculations are found to agree with the measurements.
Item Description:*The ATLAS Collaboration: G. Aad, V. Andrei, T.A. Dietzsch, P. Hanke, A. Khomich, E.-E. Kluge, A. Kugel, R. Maenner, K. Meier, F. Mueller, S. Poddar, V. Radescu, S. Schaetzel, V. Scharf, A. Schoening, H.-C. Schultz-Coulon, R. Stamen, M. Wessels [und sehr viele weitere Personen]
Im Titel steht der Buchstabe s unter dem Wurzelzeichen
Gesehen am 31.10.2022
Physical Description:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP12(2010)060

Similar Items