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2.2 fb-1 results accepted by PRL: http://arxiv.org/abs/0809.2581 Expected uncertainty on Vtb as a function of integrated luminosity. The expected uncertainty is calculated assuming SM single top cross section. This plot is done comparing our previous result for one analysis (matrix element) in summer 2007 with the projections using the combination of three analyses (matrix element, likelihood function and neural network)in winter 2008. Summary of CDF's 2.7 fb-1 Results Click here for eps file

Color code : < 1 fb-1 1-1.9 fb-1 >1.9 fb-1 Channel Description (Link to web-page) Measurement Integrated Luminosity (pb-1) Publication MET+jets MET+jets s+t channel = 4.9 +2.5 -2.2 pb 2.1 fb-1 12/18/2008 Conf. Note 9650 Lepton+jets Combination of NN, LF and ME results for 2.2 fb-1 s+t channel = 2.2 +/- 0.7 pb |Vtb| = 0.88 +/- 0.14(exp) +/- 0.07(theory) Expected p-value = 2.0 x 10-7 (5.1&sigma) Observed p-value = 9.4 x 10-5 (3.7&sigma) 2.2 fb-1 03/06/2008 Conf. Note 9251 Phys. Rev. Lett. 101, 252001 (2008) Lepton+jets Neural Network s+t channel = 2.1 +0.7 -0.6 pb 2.7 fb-1 07/24/2008 Conf. Note 9479 2.2 fb-1 Conf. Note 9217 Lepton+jets Multivariate Likelihood Function s+t channel = 2.0 +0.9 -0.8 pb 2.7 fb-1 07/24/2008 Conf. Note 9451 2.2 fb-1 Conf. Note 9221 Lepton+jets Matrix Element Discriminant s+t channel = 2.7 +0.8 -0.7 pb 2.7 fb-1 07/24/2008 Conf. Note 9464 2.2 fb-1 Conf. Note 9223 Lepton+jets Boosted Decision Trees s+t channel = 2.4 +0.8 -0.7 pb 2.7 fb-1 07/24/2008 Conf. Note 9445 2.2 fb-1 Conf. Note 9313 Lepton+jets s-Channel search s-channel = 0.9 pb (no limit or sensitivity result for 2.7 pb-1but is included in combination with Likelihood Function search above) Previous 1.9 fb-1 result: s-channel = 0.6 +0.9 -0.6 pb s-channel <2.77 pb @ 95% C.L. 2.7 fb-1 07/24/2008 Conf. Note 9460 1.9 fb-1 Conf. Note 9341 Lepton+jets HT and Qxeta t-channel < 10.1 pb s-channel < 13.6 pb 160 pb-1 01/28/2005 PRD 71 012005 Lepton+jets Search for W'->tb using single top sample MW'>800 GeV/c2 for MW' > M&nuR and MW'>825 GeV/c2 for MW' < M&nuR at 95% CL 1.9 fb-1 12/20/2007 Conf. Note 9150 1 fb-1 Conf. Note 8747 Lepton+jets Production via FCNC u(c)+g -> t <1.8pb BR (t -> u+g) < 3.9 x 10{-4}$ and BR (t -> c+g) < 5.7 x 10^{-3} 2.2 fb-1 06/17/2008 ArXiv:0812.3400v2