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arXiv · hep-th/9504129

Moduli Dependence of One--Loop Gauge Couplings in (0,2) Compactifications

P. Mayr·S. Stieberger
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Abstract

We derive the moduli dependence of the one--loop gauge couplings for non--vanishing gauge background fields in a four--dimensional heterotic (0,2) string compactification. Remarkably, these functions turn out to have a representation as modular functions on an auxiliary Riemann surface on appropriate truncations of the full moduli space. In particular, a certain kind of one--loop functions is given by the free energy of two--dimensional solitons on this surface.

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P. Mayr, S. Stieberger. 1995-04-25. Moduli Dependence of One--Loop Gauge Couplings in (0,2) Compactifications. https://doi.org/10.1016/0370-2693(95)00683-c

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