Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1992-08-14
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, (Talk presented at the XXVI INTERNATIONAL CONFERENCE ON HIGH ENERGY PHYSICS, August 6-12, 1992, Dallas), latex, IEM-F
Scientific paper
10.1016/0370-2693(92)91846-2
In the minimal supersymmetric standard model (MSSM), when radiative corrections are included, the mass of the $CP=+1$ lightest Higgs boson is bounded by $\sim 110\ GeV$ for $m_t < 150\ GeV$ and a scale of supersymmetry breaking $\sim\ 1\ TeV$. In non-minimal supersymmetric standard models (NMSSM) upper bounds on the mass of the corresponding scalar Higgs boson arise if the theory is required to remain perturbative up to scales $\gg G_F^{-1/2}$. We have computed those bounds for two illustrative NMSSM: i) A model with an arbitrary number of gauge singlets; ii) A model with three $SU(2)_L$ triplets with $Y=0,\pm 1$. We have integrated numerically the corresponding renormalization group equations (RGE), including the top and bottom quark Yukawa couplings, and added one-loop radiative corrections. For $m_t > 91\ GeV$ the absolute bounds are $\sim 140\ GeV$ for both models.
Espinosa Jose Ramon
Quiros Mariano
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