# Measurement of the p <span style='text-decoration: overline'></span>p → t <span style='text-decoration: overline'>t</span> production cross section at √<span style='text-decoration: overline'>s</span> = 1.96-TeV in the fully hadronic decay channel}.

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• Qc Physics
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• Computer Science
• Physics

## Abstract

A measurement of the top quark pair production cross section in proton antiproton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405±25 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. Fully hadronic t[overline t] decays with final states of six or more jets are separated from the multijet background using secondary vertex tagging and a neural network. The t[overline t] cross section is measured as sigmat[overline t]=4.5-1.9+2.0(stat)-1.1+1.4(syst)±0.3(lumi) pb for a top quark mass of mt=175 GeV/c2.

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