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arXiv · hep-th/0001217

String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds

Christos Kokorelis
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Abstract

We discuss the calculation of threshold corrections to gauge coupling constants for the, only, non-decomposable class of abelian (2, 2) symmetric N=1 four dimensional heterotic orbifold models, where the internal twist is realized as a generalized Coxeter automorphism. The latter orbifold was singled out in earlier work as the only N=1 heterotic $Z_N$ orbifold that satisfy the phenomenological criteria of correct minimal gauge coupling unification and cancellation of target space modular anomalies.

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Christos Kokorelis. 2000-01-31. String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds. https://doi.org/10.1016/s0550-3213(00)00141-3

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