We present a new method to measure the top quark pair production
cross section and the background rates with data corresponding to
an integrated luminosity of 2.7 fb-1 from pp̅ collisions at
√s=1.96 TeV collected with the CDF II Detector. We select
events with a single electron or muon candidate, missing transverse
energy, and at least one b-tagged jet. We perform a simultaneous
fit to a jet flavor discriminant across nine samples defined by the
number of jets and b tags. An advantage of this approach is that many
systematic uncertainties are measured in situ and inversely scale
with integrated luminosity. We measure a top cross section of σtt̅
=7.64±0.57(stat+syst)±0.45(luminosity) pb.
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Updated: Monday, 2012 February 06 15:16:44 CST automatically from input from "Stephanie A. Schuler"