Measurement of the tt¯ production cross section in pp¯collisions at √(s)=1.96 TeV using kinematic fitting of b-tagged lepton+jet events
Abstract
We report a measurement of the tt¯ production cross section using the CDF II detector at the Fermilab Tevatron. The data consist of events with an energetic electron or muon, missing transverse energy, and three or more hadronic jets, at least one of which is identified as a b-quark jet by reconstructing a secondary vertex. The background fraction is determined from a fit of the transverse energy of the leading jet. Using 162±10 pb-1 of data, the total cross section is found to be 6.0±1.6(stat.)±1.2(syst.) pb, which is consistent with the standard model prediction.
- Publication:
-
Physical Review D
- Pub Date:
- April 2005
- DOI:
- 10.1103/PhysRevD.71.072005
- arXiv:
- arXiv:hep-ex/0409029
- Bibcode:
- 2005PhRvD..71g2005A
- Keywords:
-
- 14.65.Ha;
- 13.85.Ni;
- 13.85.Qk;
- Top quarks;
- Inclusive production with identified hadrons;
- Inclusive production with identified leptons photons or other nonhadronic particles;
- High Energy Physics - Experiment
- E-Print:
- 20 pages, 11 figures, submitted to Phys. Rev. D