Phys. Rev. D 72, 052003 (2005) [27 pages]

Measurement of the cross section for tt̅ production in pp̅ collisions using the kinematics of lepton+jets events

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D. Acosta et al. CDF Collaboration
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Received 27 April 2005; published 15 September 2005

We present a measurement of the top pair production cross section in pp̅ collisions at sqrt[s]=1.96  TeV. We collect a data sample with an integrated luminosity of 194±11  pb-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 σtt̅ =6.6±1.1±1.5  pb, where the first uncertainty is statistical and the second is systematic.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevD.72.052003
DOI: 10.1103/PhysRevD.72.052003
PACS: 13.85.Ni, 13.85.Qk, 14.65.Ha, 87.18.Sn

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