Measurement of the w w cross section in root s=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings
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KünyeADD, G., ABBOTT, B., ABDALLAH, J., KHALEK, S.A., ABDELALIM, A.A., ABDESSELAM, A., ATLAS Collaboration. (2012). Measurement of the w w cross section in root s=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings. Physics Letters B, 712 (4-5), pp. 289-308. http://dx.doi.org/10.1016/j.physletb.2012.05.003.
This Letter reports a measurement of the W W production cross section in root s = 7 TeV pp collisions using data corresponding to an integrated luminosity of 1.02 fb(-1) collected with the ATLAS detector. Using leptonic decays of oppositely charged W bosons, the total measured cross section is sigma (pp -> W W) = 54.4 +/- 4.0 (stat.) +/- 3.9 (syst.) +/- 2.0 (lumi.) pb, consistent with the Standard Model prediction of sigma (pp -> W W)= 44.4 +/- 2.8 pb. Limits on anomalous electroweak triple-gauge couplings are extracted from a fit to the transverse-momentum distribution of the leading charged lepton in the event. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.