Measurement of W^+W^- production in pp collisions at sqrt{s}=7 TeV with the ATLAS detector and limits on anomalous WWZ and WWgamma couplings

Wahid Bhimji, Philip Clark, Robert Harrington, Victoria Martin, ATLAS Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents a measurement of the W^+W^- production cross section in pp collisions at sqrt{s}=7 TeV. The leptonic decay channels are analyzed using data corresponding to an integrated 4.6 fb-1 collected with the ATLAS detector at the Large Hadron Collider. The W^+W^- production cross section sigma(pp -> W^+W^-+X) is measured to be 51.9 +- 2.0 (stat) +- 3.9 (syst) +- 2.0 (lumi) pb, compatible with the Standard Model prediction of 44.7 +2.1 -1.9 pb. A measurement of the normalized fiducial cross section as a function of the leading lepton transverse momentum is also presented. The reconstructed transverse momentum distribution of the leading lepton is used to extract limits on anomalous WWZ and WWgamma couplings.
Original languageEnglish
Pages (from-to)112001
Number of pages112001
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
VolumeD87
DOIs
Publication statusPublished - 2013

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