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arXiv · hep-ph/9711472

Heavy charged Higgs boson decaying into top quark in the MSSM

J. A. Coarasa·David Garcia·Jaume Guasch·Ricardo A. Jimenez·Joan Sola
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Abstract

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^+ -> t \bar{b}, 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 O(alpha_s) QCD corrections in relevant portions of the MSSM parameter space. Our analysis incorporates the stringent low-energy constraints imposed by radiative B-meson decays.

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J. A. Coarasa, David Garcia, Jaume Guasch, Ricardo A. Jimenez, Joan Sola. 1997-11-25. Heavy charged Higgs boson decaying into top quark in the MSSM. https://doi.org/10.1016/s0370-2693(98)00255-x

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