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We report a measurement of the top quark mass using six candidate events for the process pp̄→tt̄+→Xl⁺νbl^-νb̄+X, observed in the D0 experiment at the Fermilab pp̄ collider. Using maximum likelihood fits to the dynamics of the decays, we measure a mass for the top quark of mₜ=168.4±12.3(stat)±3.6(syst) Gev. We combine this result with our previous measurement in the tt̄→l+jets channel to obtain mₜ=172.1±7.1 GeV as the best value of the mass of the top quark measured by D0.
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Abbott et al. (1999) studied this question.
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