Measurement of the $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using dilepton events

We report a measurement of the ttbar production cross section using dilepton events with jets and missing transverse energy in ppbar 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 ttbar production cross section of 7.0 +2.4/-2.1(stat.) +1.6/-1.1(syst.) +/- 0.4(lum.) pb.

Note:

15 pages, 2 figures, accepted by Phys.Rev.Lett

14.65.Ha
12.38.Qk
13.85.Qk
elementary particle jets
quark production
quarks
proton-proton inclusive interactions
standard model
anti-p p: colliding beams
anti-p p: inclusive reaction

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Measurement of the ttˉt\bar{t}ttˉ production cross section in ppˉp\bar{p}ppˉ​ collisions at s=1.96\sqrt{s} = 1.96s​=1.96 TeV using dilepton events

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Measurement of the $t\bar{t}$ production cross section in $p\bar{p}$ collisions at $\sqrt{s} = 1.96$ TeV using dilepton events