Measurement of the Top Quark Pair Production Cross Section in the All-Jets Decay Channel

Abstract
We present a measurement of tt¯ production in pp¯ collisions at s=1.8TeV from 110pb1 of data collected in the all-jets decay channel with the D0 detector at Fermilab. A neural network analysis yields a cross section of 7.1±2.8(stat)±1.5(syst)pb at a top quark mass (mt) of 172.1GeV/c2. Using previous D0 measurements from dilepton and single lepton channels, the combined D0 result for the tt¯ production cross section is 5.9±1.2(stat)±1.1(syst)pb for mt=172.1GeV/c2.
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