Finite Unification and Top Quark Mass
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In unified gauge theories there exist renormalization group invariant relations among gauge and Yukawa couplings that are compatible with perturbative renormalizability, which could be considered as a Gauge-Yukawa Unification. Such relations are even necessary to ensure all-loop finiteness in Finite Unified Theories, which have vanishing $β$-functions beyond the unification point. We elucidate this alternative way of unification, and then present its phenomenological consequences in $SU(5)$-based models.
9 pages, MPI-Ph/94-55, HD-THEP-94-34, KANAZAWA-94-18
9 pages, MPI-Ph/94-55, HD-THEP-94-34, KANAZAWA-94-18