Singular Yukawa and gauge couplings in d=4 Heterotic String Vacua
Matthias Klein, Jan Louis
Abstract
In this paper we discuss the singularities in the Yukawa and gauge couplings of N=1 compactifications of the SO(32) heterotic string in four space-time dimensions. Such singularities can arise from the strong coupling dynamics of a confined non-perturbative gauge group.
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