1996/05/17 by A. Djouadi, J. Kalinowski, P. Ohmann +1
Physics and Astronomy · #hep-ph
published as Z.Phys. C74 (1997) 93-111 · 50 pages including 8 figures (using psfig), the complete *.ps file can also be found at http://itpaxp1.physik.uni-karlsruhe.de/prep/prep.html
arxiv created 1996/05/17 · arxiv updated 2009/11/30
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 \tb 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 \tb 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.