Abstract
We report on the first direct search for charged Higgs bosons decaying into in events produced by collisions at . The search uses a data sample corresponding to an integrated luminosity of collected by the CDF II detector at Fermilab and looks for a resonance in the invariant mass distribution of two jets in the sample of 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 0.1 to 0.3 for charged Higgs boson masses of 60 to assuming . The upper limits on are also used as model-independent limits on the decay branching ratio of top quarks to generic scalar charged bosons beyond the standard model.
- Received 8 July 2009
DOI:https://doi.org/10.1103/PhysRevLett.103.101803
©2009 American Physical Society