Search for Charged Higgs Bosons in Decays of Top Quarks in pp-bar Collisions at sqrt s=1.96 TeV
Author(s)
Xie, Si; Knuteson, Bruce O.; Henderson, C.; Hahn, Kristian Allan; Gomez-Ceballos, Guillelmo; Choudalakis, Georgios; Paus, Christoph M. E.; Makhoul, Khaldoun; Goncharov, Maxim; Bauer, Gerry P; ... Show more Show less
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Alternative title
Search for Charged Higgs Bosons in Decays of Top Quarks in pp̅ Collisions at √s=1.96 TeV
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We report on the first direct search for charged Higgs bosons decaying into cs̅ in tt̅ events produced by pp̅ collisions at √s=1.96 TeV. The search uses a data sample corresponding to an integrated luminosity of 2.2 fb[superscript -1] collected by the CDF II detector at Fermilab and looks for a resonance in the invariant mass distribution of two jets in the lepton+jets sample of tt̅ candidates. We observe no evidence of charged Higgs bosons in top quark decays. Hence, 95% upper limits on the top quark decay branching ratio are placed at B(t→H[superscript +]b)< 0.1 to 0.3 for charged Higgs boson masses of 60 to 150 GeV/c[superscript 2] assuming B(H[superscript +]→cs̅ )=1.0. The upper limits on B(t→H[superscript +]b) are also used as model-independent limits on the decay branching ratio of top quarks to generic scalar charged bosons beyond the standard model.
Date issued
2009-09Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear ScienceJournal
Physical Review Letters
Publisher
American Physical Society
Citation
CDF Collaboration et al. “Search for Charged Higgs Bosons in Decays of Top Quarks in pp-bar Collisions at s=1.96 TeV.” Physical Review Letters 103.10 (2009): 101803. © 2009 The American Physical Society
Version: Final published version
ISSN
0031-9007