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Evidence for s-channel single-top-quark production in events with one charged lepton and two jets at CDF

AuthorsAaltonen, T.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Palencia, Enrique ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vilar, Rocío ; Vizán, J. ; CDF Collaboration
Issue Date2014
PublisherAmerican Physical Society
CitationPhysical Review Letters 112: 231804 (2014)
AbstractWe report evidence for s-channel single-top-quark production in proton-antiproton collisions at center-of-mass energy s=1.96TeV using a data set that corresponds to an integrated luminosity of 9.4fb-1 collected by the Collider Detector at Fermilab. We select events consistent with the s-channel process including two jets and one leptonically decaying W boson. The observed significance is 3.8 standard deviations with respect to the background-only prediction. Assuming a top-quark mass of 172.5GeV/c2, we measure the s-channel cross section to be 1.41-0.42+0.44pb. © 2014 American Physical Society.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.112.231804
Identifiersdoi: 10.1103/PhysRevLett.112.231804
issn: 0031-9007
e-issn: 1079-7114
Appears in Collections:(IFCA) Artículos
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