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Title: Observation of Electroweak Single Top-Quark Production
Authors: CDF Collaboration; Cabrera, Susana; Cuenca Almenar, Cristóbal; Álvarez González, B.; Casal, Bruno; Cuevas, Javier; Gómez, G.; Rodrigo, Teresa; Ruiz Jimeno, Alberto; Scodellaro, Luca; Vila, Iván; Vilar, Rocío; Aaltonen, T.
Issue Date: 28-Aug-2009
Publisher: American Physical Society
Citation: Physical Review Letters 103 (9): 092002 (2009)
Abstract: We report the observation of single top-quark production using 3.2 fb(-1) of pp collision data with s=1.96 TeV collected by the Collider Detector at Fermilab. The significance of the observed data is 5.0 standard deviations, and the expected sensitivity for standard model production and decay is in excess of 5.9 standard deviations. Assuming m(t)=175 GeV/c(2), we measure a cross section of 2.3(-0.5)(+0.6)(stat+syst) pb, extract the CKM matrix-element value |V-tb|=0.91 +/- 0.11(stat+syst)+/- 0.07(theory), and set the limit |V-tb|> 0.71 at the 95% C.L.
Publisher version (URL): http://dx.doi.org/ 10.1103/PhysRevLett.103.092002
URI: http://hdl.handle.net/10261/22283
DOI: 10.1103/PhysRevLett.103.092002
ISSN: 0031-9007
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