Measurement of the t-tbar production cross section in the CDF detector

Measurement of the t-tbar production cross section in the CDF detector

using events product of p-pbar collisions at a center-of-mass energy of 1.96 TeV provided by the Tevatron at Fermilab

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We present a measurement of the t-tbar production cross section using events with one charged lepton and jets from p-pbar collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Backgrounds are computed from data and Monte Carlo simulation. Using 318 inverse pb of data collected with the CDF II detector, we measure the t-tbar production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9 +1.0-1.0 (stat.) +1....