6533b830fe1ef96bd12977a1

RESEARCH PRODUCT

Measurement of the WW cross section in √(s)=7 TeV pp collisions with the ATLAS detector and limits on anomalous gauge couplings

Atlas CollaborationVasiliki MitsouJuan A. Fuster VerdúAntonio Ferrer SoriaMaría Victoria Castillo GiménezSusana Cabrera UrbánCarmen García GarcíaEmilio Higón RodríguezSalvador Martí GarcíaEduardo Ros MartínezSantiago González De La HozJosé Salt CairolsJuan Antonio Valls FerrerMohammed KaciLuca FioriniYesenia Hernández JiménezCarlos Lacasta LlácerMiguel Villaplana Pérez

subject

Col·lisions (Física nuclear)Acceleradors de partículesHigh Energy Physics::PhenomenologyHigh Energy Physics::ExperimentPartícules (Física nuclear)Detectors de radiació

description

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.

yearjournalcountryeditionlanguage
2012-01-01
10.1016/j.physletb.2012.05.003http://hdl.handle.net/10550/36279