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arXiv · hep-ph/9304295

Phenomenological Implications of the $m_t$ RGE Fixed Point for SUSY Higgs Boson Searches

V. Barger·M. S. Berger·P. Ohmann·R. J. N. Phillips
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Abstract

In minimal SUSY-GUT models with $M_{SUSY}\ltap 1$ TeV, the renormalization group equations have a solution dominated by the infrared fixed point of the top Yukawa coupling. This fixed point predicts $m_t=(200\; {\rm GeV})\sin β$; combined with the LEP results it excludes $m_t\ltap 130$ GeV. For $m_t$ in the range 130-160 GeV, we discuss the sensitivity of the $m_t$ fixed point result to GUT threshold corrections and point out the implications for Higgs boson searches. The lightest scalar $h$ has mass 60-85 GeV and will be detectable at LEPII. At SSC/LHC, each of the five scalars $h$, $H$, $A$, $H^{\pm }$ may be detectable, but not all of them together; in one parameter region none will be detectable.

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V. Barger, M. S. Berger, P. Ohmann, R. J. N. Phillips. 1993-04-23. Phenomenological Implications of the $m_t$ RGE Fixed Point for SUSY Higgs Boson Searches. https://doi.org/10.1016/0370-2693(93)91248-l

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