Measurement of the t anti-t production cross section in p anti-p collisions at s**(1/2) = 1.96-TeV using kinematic characteristics of lepton + jets events

We present a measurement of the top quark pair production cross section in p(bar p) collisions at √s = 1.96 TeV utilizing 425 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. We consider the final state of the top quark pair containing one high-pT electron or muon and at least four jets. We exploit specific kinematic features of t(bar t) events to extract the cross section. For a top quark mass of 175 GeV, we measure σt#bar t# = 6.4-1.2+1.3(stat) ± 0.7(syst) ± 0.4(lum)pb, in good agreement with the standard model prediction