Heavy charged Higgs boson decaying into top quark in the MSSM

J. A. Coarasa, David Garcia, Jaume Guasch, Ricardo A. Jiménez, Joan Solà

Research output: Contribution to journalArticleResearchpeer-review

29 Citations (Scopus)


Observing a heavy charged Higgs boson produced in the near future at the Tevatron or at the LHC would be instant evidence of physics beyond the Standard Model. Whether such a Higgs boson would be supersymmetric or not it could only be decided after accurate prediction of its properties. Here we compute the decay width of the dominant decay of such a boson, namely H+ → tb̄, including the leading electroweak corrections originating from large Yukawa couplings within the MSSM. These electroweak effects turn out to be of comparable size to the script O sign;(αs) QCD corrections in relevant portions of the MSSM parameter space. Our analysis incorporates the stringent low-energy constraints imposed by radiative B-meson decays. © 1998 Elsevier Science B.V. All rights reserved.
Original languageEnglish
Pages (from-to)329-336
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Publication statusPublished - 23 Apr 1998


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