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Measurement of the production and differential cross sections of W+W− bosons in association with jets in pp¯ collisions at √s=1.96  TeV

AutorAaltonen, T.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Fecha de publicación2015
EditorAmerican Physical Society
CitaciónPhysical Review D 91(11): 111101(R) (2015)
ResumenWe present a measurement of the W-boson-pair production cross section in pp¯ collisions at 1.96 TeV center-of-mass energy and the first measurement of the differential cross section as a function of jet multiplicity and leading-jet energy. The W+W− cross section is measured in the final state comprising two charged leptons and neutrinos, where either charged lepton can be an electron or a muon. Using data collected by the CDF experiment corresponding to 9.7  fb−1 of integrated luminosity, a total of 3027 collision events consistent with W+W− production are observed with an estimated background contribution of 1790±190 events. The measured total cross section is σ(pp¯→W+W−)=14.0±0.6(stat)+1.2−1.0(syst)±0.8(lumi)  pb, consistent with the standard model prediction.
Descripciónet al.
Versión del editorhttps://doi.org/10.1103/PhysRevD.91.111101
URIhttp://hdl.handle.net/10261/140058
DOI10.1103/PhysRevD.91.111101
Identificadoresdoi: 10.1103/PhysRevD.91.111101
e-issn: 1550-2368
issn: 1550-7998
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