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Article
Report number arXiv:1503.03709 ; CERN-PH-EP-2014-259 ; CERN-PH-EP-2014-259
Title Measurement of the forward-backward asymmetry of electron and muon pair-production in pp collisions at s = 7 TeV with the ATLAS detector
Related titleMeasurement of the forward-backward asymmetry of electron and muon pair-production in pp collisions at s = 7 TeV with the ATLAS detector
Author(s) ATLAS Collaboration  Mostrar todos os 2882 autores
Publication 2015-09-09
Imprint 12 Mar 2015
Number of pages 25
Note Comments: 25 pages plus author list + cover pages (42 pages total), 7 figures, 4 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2011-34/
27 pages plus author list + cover page (44 pages total), 7 figures, 4 tables, submitted to JHEP, All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2011-34/
In: JHEP 09 (2015) 049
DOI 10.1007/JHEP09(2015)049
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Abstract This paper presents measurements from the ATLAS experiment of the forward-backward asymmetry in the reaction ppZ/γl+l, with l being electrons or muons, and the extraction of the effective weak mixing angle. The results are based on the full set of data collected in 2011 in pp collisions at the LHC at s = 7 TeV, corresponding to an integrated luminosity of 4.8 fb1. The measured asymmetry values are found to be in agreement with the corresponding Standard Model predictions. The combination of the muon and electron channels yields a value of the effective weak mixing angle of 0.2308±0.0005(stat.)±0.0006(syst.)±0.0009(PDF), where the first uncertainty corresponds to data statistics, the second to systematic effects and the third to knowledge of the parton density functions. This result agrees with the current world average from the Particle Data Group fit.
Copyright/License preprint: © 2014-2024 CERN (License: CC-BY-3.0)
publication: © 2015-2024 CERN (License: CC-BY-4.0), sponsored by SCOAP³



Corresponding record in: Inspire


 Record created 2015-03-13, last modified 2024-04-19


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