Search for charged Higgs bosons in decays of top quarks

Details Search for charged Higgs bosons in decays of top quarks Search for charged Higgs bosons in decays of top quarks

2009-06-29

arxiv.org/abs/0906.5326v2

Phys.Rev.D80:051107,2009

Physics

High Energy Physics

High Energy Physics - Experiment

7 pages, 5 figures, Submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.80.051107

We present a search for charged Higgs bosons in decays of top quarks, in the mass range $80 < m_{H^{\pm} < 155$ GeV, assuming the subsequent decay $H^{+} \to \tau^{+} \nu_\tau$ (and its charge conjugate). Using 0.9 fb$^{-1}$ of lepton+jets data collected with the D0 detector at the Fermilab Tevatron $p\bar{p}$ collider, operating at a center of mass energy $\sqrt{s}=1.96$ TeV, we find no evidence for a $H^{\pm}$ signal. Hence, we exclude branching ratios $B(t \to H^+b) > 0.24$ for $m_{H^{\pm}=80$ GeV, and $B(t \to H^+b) > 0.19$ for $m_{H^{\pm}=155$ GeV, at the 95% C.L.

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