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arXiv · hep-ph/9501277

Precision Corrections to Supersymmetric Unification

Jonathan Bagger·Konstantin Matchev·Damien Pierce
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Abstract

We compute the full set of weak-scale gauge and Yukawa threshold corrections in the minimal supersymmetric standard model, including all finite (non-logarithmic) corrections, which we show to be important. We use our results to examine the effects of unification-scale threshold corrections in the minimal and missing-doublet SU(5) models. We work in the context of a unified mass spectrum, with scalar mass M_0 and gaugino mass M_1/2, and find that in minimal SU(5) with squark masses less than one TeV, successful gauge and Yukawa coupling unification requires M_1/2 << M_0 and M_0 \simeq 1 TeV. In contrast, we find that the missing-doublet model permits gauge and Yukawa unification for a wide range of supersymmetric masses.

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Jonathan Bagger, Konstantin Matchev, Damien Pierce. 1995-01-12. Precision Corrections to Supersymmetric Unification. https://doi.org/10.1016/0370-2693(95)00207-2

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