Measurement of the Top Quark and W Boson Masses
Abstract
We measure the top quark mass in top-antitop events using up to 3.6 /fb of proton-antiproton collisions at sqrts=2 TeV. New results are described for matrix element methods with single lepton and dilepton channels, and template methods with all-jets and dilepton channels. Standardization of systematic uncertainties has proceeded between the CDF and D0 collaborations. A combined measurement of 173.1+/-0.6(stat)+/-1.1(syst) GeV is achieved. Fits to all measured electroweak parameters gives a Higgs boson mass 95% CL upper limit of mH < 163 GeV. We also present a new measurement of the W boson mass from D0. Three different template methods are performed. Accounting for their correlations, a combined measurement of MW=80.401+/-0.043(stat+syst) GeV is obtained.
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