Measurement of the $p \bar p \to t \bar t $ production cross section at $\sqrt s $ 1.96-TeV in the fully hadronic decay channel

Christian Schwanenberger, V M Abazov, collaboration D others

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    Abstract

    A measurement of the top quark pair production cross section in proton anti-proton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. Fully hadronic ttbar decays with final states of six or more jets are separated from the multijet background using secondary vertex tagging and a neural network. The ttbar cross section is measured as sigma(ttbar)=4.5 -1.9 +2.0 (stat) -1.1 +1.4 (syst) +/- 0.3 (lumi) pb for a top quark mass of m(t) = 175 GeV/c^2.
    Original languageEnglish
    Article number72007
    Number of pages10
    JournalPhys. Rev.
    VolumeD76
    Publication statusPublished - Dec 2006

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