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Expected uncerntatiny 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.
CDF and D0 results

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
Lepton+jets
Combination of
NN, LF and ME results
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
Lepton+jets
Neural Network s+t channel = 2.0 +0.9-0.8 pb
2.2 fb-1 02/27/2008
Conf. Note 9217
Lepton+jets
Multivariate Likelihood Function s+t channel = 1.8 +0.9 -0.8 pb
2.2 fb-1 02/27/2008
Conf. Note 9221
Lepton+jets
Matrix Element Discriminant s+t channel = 2.2 +0.8 -0.7 pb
2.2 fb-1 02/27/2008
Conf. Note 9223
Lepton+jets
Boosted Decision Trees s+t channel = 1.9 +0.8 -0.7 pb
2.2 fb-1 04/10/2008
Conf. Note 9313
Lepton+jets
s-Channel search s-channel = 0.6 +0.9 -0.6 pb
s-channel <2.77 pb @ 95% C.L.
1.9 fb-1 04/10/2008
Conf. Note 9341
Lepton+jets HT 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