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We report the measurements of the t anti-t production cross section and ofthe top quark mass using 1.02 fb^-1 of p anti-p data collected with the CDFIIdetector at the Fermilab Tevatron. We select events with six or more jets onwhich a number of kinematical requirements are imposed by means of a neuralnetwork algorithm. At least one of these jets must be identified as initiatedby a b-quark candidate by the reconstruction of a secondary vertex. The crosssection is measured to be sigma_{tt}=8.3+-1.0(stat.)+2.0-1.5(syst.)+-0.5(lumi.)pb, which is consistent with the standard model prediction. The top quark massof 174.0+-2.2(stat.)+-4.8(syst.) GeV/c^2 is derived from a likelihood fitincorporating reconstructed mass distributions representative of signal andbackground.

Measurement of the p anti-p to t anti-t Production Cross Section and the Top Quark Mass at sqrt{s}=1.96 TeV in the All-Hadronic Decay Mode