Measurement of the tt¯ production cross section in pp¯ collisions at s=1.96TeV using secondary vertex b tagging
Abstract
We report a new measurement of the tt¯ production cross section in pp¯ collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon), missing transverse energy, and jets. Using 425pb-1 of data collected using the D0 detector at the Fermilab Tevatron Collider, and enhancing the tt¯ content of the sample by tagging b jets with a secondary vertex tagging algorithm, the tt¯ production cross section is measured to be σpp¯→tt¯+X=6.6±0.9(stat+syst)±0.4(lum)pb. This cross section is the most precise D0 measurement to date for tt¯ production and is in good agreement with standard model expectations.
- Publication:
-
Physical Review D
- Pub Date:
- December 2006
- DOI:
- 10.1103/PhysRevD.74.112004
- arXiv:
- arXiv:hep-ex/0611002
- Bibcode:
- 2006PhRvD..74k2004A
- Keywords:
-
- 13.85.Lg;
- 13.85.Ni;
- 13.85.Qk;
- 14.65.Ha;
- Total cross sections;
- Inclusive production with identified hadrons;
- Inclusive production with identified leptons photons or other nonhadronic particles;
- Top quarks;
- High Energy Physics - Experiment
- E-Print:
- 25 pages, 13 figures