Abstract
We present analytic expressions for the top and bottom Yukawa couplings in the context of the minimal supersymmetric standard model when both couplings h t, o , h b, o are large at the unification scale. For sufficiently large h t, o , h b, o , using as input the central value of the bottom mass m b ( m b )=4.25 GeV, we find that the top mass lies in the range m t ≈(174–178) GeV, while tan β ≈ (55–58). Implications on the evolution of the scalar masses and the radiative symmetry breaking scenario are discussed.
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