Measurement of the Single Top Quark Production Cross Section and |Vtb| in Events with One Charged Lepton, Large Missing Transverse Energy, and Jets at CDF

Abstract

We report a measurement of single top quark production in proton-antiproton collisions at a center-of-mass energy of \sqrt{s} = 1.96 TeV using a data set corresponding to 7.5 fb-1 of integrated luminosity collected by the Collider Detector at Fermilab. We select events consistent with the single top quark decay process t \to Wb \to lνb by requiring the presence of an electron or muon, a large imbalance of transverse momentum indicating the presence of a neutrino, and two or three jets including at least one originating from a bottom quark. An artificial neural network is used to discriminate the signal from backgrounds. We measure a single top quark production cross section of 3.04+0.57-0.53 pb and set a lower limit on the magnitude of the coupling between the top quark and bottom quark |Vtb| > 0.78 at the 95% credibility level.

Version appearing in Physical Review Letters

References in corpus (9)

• PYTHIA 6.4 Physics and Manual
• Single-top Wt-channel production matched with parton showers using the POWHEG method
• Two-loop soft anomalous dimensions for single top quark associated production with a W- or H-
• Next-to-next-to-leading-order collinear and soft gluon corrections for t-channel single top quark production
• NNLL resummation for s-channel single top quark production
• Measurement of the single-top-quark t-channel cross section in pp collisions at sqrt(s) = 7 TeV
• Observation of Single Top Quark Production and Measurement of |Vtb| with CDF
• Evidence for associated production of a single top quark and W boson in pp collisions at sqrt(s) = 7 TeV
• Search for the standard model Higgs boson produced in association with a $W^{\pm }$ boson with 7.5 fb${}^{-1}$ integrated luminosity at CDF

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• Review of Physics Results from the Tevatron: Higgs Boson Physics
• Interplay of vector-like top partner multiplets in a realistic mixing set-up
• Production of single top quark - results from the Tevatron and the LHC
• Top quark properties