CERN Accelerating science

Article
Report number arXiv:1111.5570 ; CERN-PH-EP-2011-184 ; CERN-PH-EP-2011-184
Title Measurement of the W±Z production cross section and limits on anomalous triple gauge couplings in proton-proton collisions at s = 7 TeV with the ATLAS detector
Related titleMeasurement of the WZ production cross section and limits on anomalous triple gauge couplings in proton-proton collisions at sqrt(s) = 7 TeV with the ATLAS detector
Author(s) ATLAS Collaboration  Prikaži svih 3004 autora
Publication 2013-07-16
Imprint 24 Nov 2011
Number of pages 17
Note Comments: 6 pages plus author list (19 pages total), 3 figures, 3 tables, submitted to Physics Review Letters
6 pages plus author list (18 pages total), 3 figures, 3 tables, matches published version in Physics Letters B
In: Phys. Lett. B 709 (2012) 341-357
DOI 10.1016/j.physletb.2012.02.053
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords electroweak interaction ; lepton production ; experimental results
Abstract This Letter presents a measurement of W±Z production in 1.02 fb1 of pp collision data at s = 7 TeV collected by the ATLAS experiment in 2011. Doubly leptonic decay events are selected with electrons, muons and missing transverse momentum in the final state. In total 71 candidates are observed, with a background expectation of 12.1±1.4(stat.)2.0+4.1(syst.) events. The total cross section for W±Z production for Z/γ masses within the range 66 GeV to 116 GeV is determined to be σWZtot = 20.52.8+3.1(stat.)1.3+1.4(syst.)0.8+0.9(lumi.) pb, which is consistent with the Standard Model expectation of 17.30.8+1.3 pb. Limits on anomalous triple gauge boson couplings are extracted.
Copyright/License publication: © 2012-2025 CERN (License: CC-BY-3.0)
preprint: © 2011-2025 CERN (License: Open Access)



Corresponding record in: Inspire
Email contact: klaus.moenig@cern.ch


 Zapis kreiran 2011-11-24, zadnja izmjena 2024-03-14


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