Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2009-08-15
Physics
High Energy Physics
High Energy Physics - Experiment
TEVEWWG/singletop 2009/08, CDF Note 9870, D0-NOTE-5973, 10 pages, 4 figures
Scientific paper
We report a combination of the CDF and D0 measurements of the inclusive single top quark production cross section in the s- and t-channels in ppbar collisions at a center of mass energy of 1.96TeV. The total integrated luminosity included in CDF's analysis is 3.2 fb^-1 and D0's analysis has 2.3 fb^-1. A Bayesian analysis is used to extract the cross section from the distributions of multivariate discriminants provided by the collaborations. For a top quark mass m_t=170 GeV/c^2, we measure a cross section of 2.76 +0.58 -0.47 pb. We extract the CKM matrix element |Vtb|=0.88+-0.07 with a 95% C.L. lower limit of |Vtb|>0.77.
for the CDF Collaboration
The D0 Collaboration
Working Group Tevatron Electroweak
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