String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds

Details String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds

2000-01-31

arxiv.org/abs/hep-th/0001217v1

Nucl.Phys. B579 (2000) 267-274

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, LaTex

Scientific paper

10.1016/S0550-3213(00)00141-3

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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