Measurement of the W+W cross section in pp collisions at √s = 7 TeV and limits on anomalous WWγ and WWZ couplings

CMS Collaboration

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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.
Original languageEnglish
Article number2610
Number of pages22
JournalEuropean Physical Journal C
Issue number10
Publication statusPublished - 2013
Externally publishedYes

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