Top Mass Analyses for the Reported Top-Antitop Production and Decay Events

Abstract

We have analyzed the available data on $p\bar{p}\to t\bar{t}$ followed by the decays ($t\to b{W}^{+},\bar{t}\to \bar{b}{W}^{-}$) which lead to $e^{\pm }{\mu }^{\mp }2\mathrm{jets}$ or $l^{\pm }4\mathrm{jets}$ configurations, using a likelihood method we proposed earlier. The outcome is compared with the recent CDF analysis. In an appendix, we discuss the nature of the additional ``slow'' ${\mu }^{+}$ observed in one CDF dilepton event, concluding that it is most probably a ``tertiary lepton'' resulting from the decay sequence $b\to c+\mathrm{hadrons}$, followed by $c\to s{\mu }^{+}\nu$.

23 pages LaTeX(2e). 9 Figures, not included, will be sent on request ([email protected])