PHENOMENOLOGICAL IMPLICATIONS OF THE M(T)RGE FIXED-POINT FOR SUSY HIGGS-BOSON SEARCHES

In minimal SUSY-GUT models with M(SUSY) less than or similar to 1 TeV, the renormalization group equations have a solution dominated by the infrared fixed point of the top Yukawa coupling. This fixed point pred icts m(t) = (200 GeV) sin beta; combined with the LEP results it exclu des m(t) less than or similar to 130 GeV. For m(t) in the range 130-16 0 GeV, we discuss the sensitivity of the m(t) fixed point result to GU T threshold corrections and point out the implications for Higgs boson searches. The lightest scalar h has mass 60-85 GeV and will be detect able at LEP II. At SSC/LHC, each of the five scalars h, H, A, H+/-may be detectable, but not all of them together; in one parameter region n one will be detectable.