Search for Charged Higgs Bosons in Decays of Top Quark Pairs

Details Search for Charged Higgs Bosons in Decays of Top Quark Pairs Search for Charged Higgs Bosons in Decays of Top Quark Pairs

1999-02-20

arxiv.org/abs/hep-ex/9902028v1

Phys.Rev.Lett.82:4975-4980,1999

Physics

High Energy Physics

High Energy Physics - Experiment

11 pages, 3 figures, submitted to PRL

Scientific paper

10.1103/PhysRevLett.82.4975

We present a search for charged Higgs bosons in decays of pair-produced top quarks using 109.2 +- 5.8 pb^-1 of data recorded from ppbar collisions at sqrt{s} = 1.8 TeV by the D0 detector during 1992-96 at the Fermilab Tevatron. No evidence is found for charged Higgs production, and most parts of the [m(H+),tan(beta)] parameter space where the decay t -> bH+ has a branching fraction close to or larger than that for t -> bW+ are excluded at 95% confidence level. Assuming m(t) = 175 GeV and sigma(ppbar -> ttbar) = 5.5 pb, for m(H+) = 60 GeV, we exclude tan(beta) < 0.97 and tan(beta) > 40.9.

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