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Measurement of the WZ cross section and triple gauge couplings in pp̄ collisions at √s=1.96TeV

AuthorsAaltonen, T.; Álvarez González, B.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Issue Date2012
PublisherAmerican Physical Society
CitationPhysical Review D 86: 031104(R) (2012)
AbstractThis article describes the current most precise measurement of the WZ production cross section as well as limits on anomalous WWZ couplings at a center-of-mass energy of 1.96 TeV in proton-antiproton collisions for the Collider Detector at Fermilab (CDF). WZ candidates are reconstructed from decays containing three charged leptons and missing energy from a neutrino, where the charged leptons are either electrons or muons. Using data collected by the CDF II detector (7.1fb -1 of integrated luminosity), 63 candidate events are observed with the expected background contributing 8±1 events. The measured total cross section σ(pp̄→WZ)=3.93-0.53+0.60(stat)-0. 46+0.59(syst)pb is in good agreement with the standard model prediction of 3.50±0.21. The same sample is used to set limits on anomalous WWZ couplings. © 2012 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.86.031104
Identifiersdoi: 10.1103/PhysRevD.86.031104
issn: 1550-7998
e-issn: 1550-2368
Appears in Collections:(IFCA) Artículos
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