We report a measurement of the tt-bar production cross section
using dilepton events with jets and missing transverse energy in p anti-p
collisions at a center-of-mass energy of 1.96 TeV. Using a 197 +/- 12 pb-1
data sample recorded by the upgraded Collider Detector at Fermilab, we use
two complementary techniques to select candidate events. We compare the
number of observed events and selected kinematical distributions with the
predictions of the Standard Model and find good agreement. The combined
result of the two techniques yields a tt-bar production cross section of
7.0+2.4_-2.1(stat.)+1.6_-1.1(syst.) +/- 0.4(lum.) pb.
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Updated: Monday, 2004 November 01 14:12:31 CST automatically from input from "Carol I. Picciolo"