Measurement of the $p \bar{p} \to t \bar{t}$ production cross- section and the top quark mass at $\sqrt{s}$ = 1.96- TeV in the all-hadronic decay mode

We report the measurements of the t[overline t] production cross section and of the top quark mass using 1.02 fb-1 of p[overline p] data collected with the CDF II detector at the Fermilab Tevatron. We select events with six or more jets on which a number of kinematical requirements are imposed by means of a neural network algorithm. At least one of these jets must be identified as initiated by a b-quark candidate by the reconstruction of a secondary vertex. The cross section is measured to be sigmat[overline t]=8.3$\pm$1.0(stat)-1.5+2.0(syst)$\pm$0.5(lumi) pb, which is consistent with the standard model prediction. The top quark mass of 174.0$\pm$2.2(stat)$\pm$4.8(syst) GeV/c2 is derived from a likelihood fit incorporating reconstructed mass distributions representative of signal and background.

Duke Scholars

Author Alfred T. Goshaw Physics

Author Ashutosh V. Kotwal Physics

Author Mark C. Kruse Physics

Author Seog Oh Physics