CMS Collaboration, Adair, A., Akgun, B., et al.. "Measurement of the W+ W− cross section in pp collisions at √s=7 TeV and limits on anomalous WWγ and WWZ couplings." The European Physical Journal C, 73, no. 2610 (2013) Springer: http://dx.doi.org/10.1140/epjc/s10052-013-2610-8.
A measurement of W+W− production in pp collisions at √s=7 TeV is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 4.92±0.11 fb−1. The W+W− candidates consist of two oppositely charged leptons, electrons or muons, accompanied by large missing transverse energy. The W+W− production cross section is measured to be 52.4±2.0 (stat.)±4.5 (syst.)±1.2 (lum.) pb. This measurement is consistent with the standard model prediction of 47.0±2.0 pb at next-to-leading order. Stringent limits on the WWγ and WWZ anomalous triple gauge-boson couplings are set.
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