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arXiv · hep-ph/9206206

Analysis of Running Coupling Constant Unification in String Theory

Mary K. Gaillard·Rulin Xiu
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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.

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Mary K. Gaillard, Rulin Xiu. 1992-06-03. Analysis of Running Coupling Constant Unification in String Theory. https://doi.org/10.1016/0370-2693(92)90805-e

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