Measurement of the W W cross section in root s=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings

G. Aad, B. Abbott, Mogens Dam, Jørgen Beck Hansen, Peter Henrik Hansen, John Renner Hansen, Jørn Dines Hansen, Morten Dam Jørgensen, Simon Johann Franz Heisterkamp, Esben Bryndt Klinkby, Ask Emil Løvschall-Jensen, Nele Maria Philomena Boelaert, Sascha Mehlhase, Björn Stefan Nilsson, Troels Christian Petersen, Stefania Xella

43 Citationer (Scopus)

Abstract

This Letter reports a measurement of the WW production cross section in √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 σ(pp→WW)=54.4±4.0(stat.)±3.9(syst.)±2.0(lumi.) pb, consistent with the Standard Model prediction of σ(pp→WW)=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.

OriginalsprogEngelsk
TidsskriftPhysics Letters B
Vol/bind712
Udgave nummer4-5
Sider (fra-til)289-308
ISSN0370-2693
DOI
StatusUdgivet - 12 jun. 2012

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