Measurement of the cross section for tt? production in pp? collisions using the kinematics of lepton+jets events
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
72
Journal Issue
5
Date Issued
2005
Author(s)
Acosta, D. et al. (The CDF Collaboration)
Abstract
We present a measurement of the top pair production cross section in pp̄ collisions at s=1.96TeV. We collect a data sample with an integrated luminosity of 194±11pb-1 with the CDF II detector at the Fermilab Tevatron. We use an artificial neural network technique to discriminate between top pair production and background processes in a sample of 519 lepton+jets events, which have one isolated energetic charged lepton, large missing transverse energy and at least three energetic jets. We measure the top pair production cross section to be σtt̄=6.6±1.1±1.5pb, where the first uncertainty is statistical and the second is systematic. © 2005 The American Physical Society.
Type
journal article