HUTP-99 / A 019 , NUB 3199 , EFI-99-11 Higher Loop Effects on Unification via Kaluza-Klein Thresholds


We discuss higher loop corrections to gauge coupling renormalization in the context of gauge coupling unification via Kaluza-Klein thresholds. We show that in the case of N = 1 supersymmetric compactifications the one-loop threshold contributions are dominant, while the higher loop correction are subleading. This is due to the fact that at heavy Kaluza… (More)

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