Measurement of the cross section fortt¯production inpp¯collisions using the kinematics of lepton+jets events

Citations Over TimeTop 10% of 2005 papers

Abstract

We present a measurement of the top pair production cross section in $p\overline{p}$ collisions at $\sqrt{s}=1.96\text{ }\text{ }\mathrm{TeV}$. We collect a data sample with an integrated luminosity of $194\ifmmode\pm\else\textpm\fi{}11\text{ }\text{ }{\mathrm{pb}}^{\ensuremath{-}1}$ 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 ${\ensuremath{\sigma}}_{t\overline{t}}=6.6\ifmmode\pm\else\textpm\fi{}1.1\ifmmode\pm\else\textpm\fi{}1.5\text{ }\text{ }\mathrm{pb}$, where the first uncertainty is statistical and the second is systematic.

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