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Search for charged higgs bosons in decays of top quarks in pp Collisions at s=1.96-TeV

  • T. Aaltonen
  • , J. Adelman
  • , T. Akimoto
  • , B. Ãlvarez Gonzãlez
  • , S. Amerio
  • , D. Amidei
  • , A. Anastassov
  • , A. Annovi
  • , J. Antos
  • , G. Apollinari
  • , A. Apresyan
  • , T. Arisawa
  • , A. Artikov
  • , W. Ashmanskas
  • , A. Attal
  • , A. Aurisano
  • , F. Azfar
  • , P. Azzurri
  • , W. Badgett
  • , A. Barbaro-Galtieri
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Research output: Contribution to journalArticlepeer-review

122 Scopus citations

Abstract

We report on the first direct search for charged Higgs bosons decaying into cs in tt events produced by pp collisions at s=1.96-TeV. The search uses a data sample corresponding to an integrated luminosity of 2.2-fb-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 tt 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+b)< 0.1 to 0.3 for charged Higgs boson masses of 60 to 150-GeV/c2 assuming B(H+†'cs)=1.0. The upper limits on B(t†'H+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.

Original languageEnglish
Article number101803
JournalPhysical Review Letters
Volume103
Issue number10
DOIs
StatePublished - 4 Sep 2009

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