Measurement of the tt? production cross section in pp? collisions at √s=1:96 TeV using kinematic fitting of b-tagged lepton+jet events
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
71
Journal Issue
7
Pages
1月11日
Date Issued
2005
Author(s)
Acosta, D. et al. (The CDF Collaboration)
Abstract
We report a measurement of the tt̄ 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. © 2005 The American Physical Society.
SDGs
Type
journal article