Measurement of the W charge asymmetry in the W →μν decay mode in pp collisions at √s = 7 TeV with the ATLAS detector
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Aad-2011-Measurement of the W.pdf
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1.12 MB
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509b9043ce6fcaa775e6463b6ee9a438
Author(s)
Taylor, Frank E.
Date Issued
May 2011
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Measurement of the W Charge Asymmetry in the W →μν Decay Mode in Pp Collisions at √s = 7 TeV with the ATLAS Detector.” Physics Letters B 701, no. 1 (June 2011): 31–49.
Version
Final published version
Abstract
This Letter reports a measurement of the muon charge asymmetry from W bosons produced in proton–proton collisions at a centre-of-mass energy of 7 TeV with the ATLAS experiment at the LHC. The asymmetry is measured in the W→μν decay mode as a function of the muon pseudorapidity using a data sample corresponding to a total integrated luminosity of 31 pb[superscript −1]. The results are compared to predictions based on next-to-leading order calculations with various parton distribution functions. This measurement provides information on the u and d quark momentum fractions in the proton.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2011.05.024
