Combination of ttbar cross section measurements and constraints on the mass of the top quark and its decays into charged Higgs bosons

Abstract

We combine measurements of the top quark pair production cross section in ppbar collisions in the l+jets, ll and tau-l final states (where l is an electron or muon) at a center of mass energy of sqrt(s)=1.96 TeV in 1fb^{-1} of data collected with the D0 detector. For a top quark mass of 170 GeV, we obtain sigma_ttbar=8.18^{+0.98}_{-0.87} pb. In addition, the ratios of ttbar cross sections in different final states are used to set upper limits on the branching fractions B(t -> H^{+}b -> tau nu b) and B(t -> H^{+}b -> c sbar b) as a function of charged Higgs boson mass. Based on predictions from higher order quantum chromodynamics, we extract a mass for the top quark from the combined ttbar cross section.

8 pages, 4 figures

References in corpus (8)

• Implications of CTEQ global analysis for collider observables
• Estimate of BR(B -> X_s gamma) at O(alpha_s^2)
• Theoretical status and prospects for top-quark pair production at hadron colliders
• Updated predictions for the total production cross sections of top and of heavier quark pairs at the Tevatron and at the LHC
• The theoretical top quark cross section at the Tevatron and the LHC
• Top Mass Measurements from Jets and the Tevatron Top-Quark Mass
• Measurement of the ttbar production cross section in pbarp collisions at sqrt(s) = 1.96 TeV using secondary vertex b tagging
• Measurement of the ttbar production cross section and top quark mass extraction using dilepton events in ppbar collisions

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