Analysis of Running Coupling Constant Unification in String Theory

Abstract

We use recently obtained 2-loop string coupling constants to analyze a class of string models based on orbifold compactification. Assuming weak coupling at the string scale and single-scale unification leads to restrictions on the spectrum of massive (between the string scale and the weak scale) matter supermultiplets and/or on the Kac-Moody algebra level.

12 pages

References in corpus (3)

• Gauge Coupling Running in Minimal SU(3)xSU(2)xU(1) Superstring Unification
• Axion Couplings and Effective Cut-Offs in Superstring Compactifications
• Duality-Invariant Gaugino Condensation and One-Loop Corrected Kahler Potentials in String Theory

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