Abstract
The production mechanisms and decay modes of the heavy neutral and charged Higgs bosons in the Minimal Supersymmetric Standard Model are investigated at future e +e − colliders in the TeV energy regime. We generate supersymmetric particle spectra by requiring the MSSM Higgs potential to produce correct radiative electroweak symmetry breaking, and we assume a common scalar mass m0, gaugino mass m1/2 and trilinear coupling A, as well as gauge and Yukawa coupling unification at the Grand Unification scale. Particular emphasis is put on the low tan β solution in this scenario where decays of the Higgs bosons to Standard Model particles compete with decays to supersymmetric charginos/neutralinos as well as sfermions. In the high tan β case, the supersymmetric spectrum is either too heavy or the supersymmetric decay modes are suppressed, since the Higgs bosons decay almost exclusively into b and τ pairs. The main production mechanisms for the heavy Higgs particles are the associated AH production and H +H− pair production with cross sections of the order of a few fb.
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Djouadi, A., Kalinowski, J., Ohmann, P. et al. Heavy SUSY Higgs bosons at e +e − linear colliders. Z Phys C - Particles and Fields 74, 93–111 (1997). https://doi.org/10.1007/s002880050373
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DOI: https://doi.org/10.1007/s002880050373