A low $α_s$ and its consequences for unified model building

Details A low $α_s$ and its consequences for unified model building A low $α_s$ and its consequences for unified model building

1995-08-14

arxiv.org/abs/hep-ph/9508293v1

Int.J.Mod.Phys. A11 (1996) 1699-1714

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX with epsf style, 20 pages, three (uuencoded) figures

Scientific paper

We review various ways of obtaining consistency between the idea of supersymmetric grand unification and an apparent low value of $\alpha_s \sim 0.112$ indicated by several low energy experiments. We argue that to reconcile the low value of $\alpha_s$ with the predictions of supersymmetric GUTs, we need to go beyond the standard minimal supersymmetric GUT scenario and invoke new physics either at $10^{11}-10^{12}$ GeV, or at the GUT scale.

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