Precision Data Parameters and Grand Unification Predictions

Abstract

When realizing the Minimal Supersymmetric Standard Model (MSSM) within a (simple) Grand Unified Theory (GUT), the predicted ranges for the strong coupling and the ratio of two Higgs doublet expectation values are strongly correlated with the weak angle and the $t$-quark mass. (The latter are extracted from precision data.) We spell out those relations and point out the implication for the mass of the light MSSM (CP even) Higgs boson.

Comments: (talk presented at the 16th Kazimierz Meeting, Poland May 24 - 28, 1993), 5 pages + 1 figure (figure is available upon request), Latex, UPR-0588T