String Loop Threshold Corrections for N=1 Generalized Coxeter Orbifolds

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.

10 pages, LaTex

References in corpus (6)

• Duality Anomaly Cancellation, Minimal String Unification and the Effective Low-Energy Lagrangian of 4-D Strings
• Threshold Corrections to Gauge Couplings in Orbifold Compactifications
• Comment on the Generation Number in Orbifold Compactifications
• String Loop Threshold Corrections \break For ${\mathbf{Z}}_N$ Coxeter Orbifolds
• Gauge and Gravitational Couplings from Modular Orbits in Orbifold Compactifications
• Theoretical and Phenomenological Aspects of Superstring Theories

Cited by in corpus (11)

• Exact Standard model Structures from Intersecting D5-Branes
• Exact Standard Model Compactifications from Intersecting Branes
• GUT Model Hierarchies from Intersecting Branes
• Towards Low Energy Physics from the Heterotic String
• Deformed Intersecting D6-Brane GUTS I
• On the quantum stability of IIB orbifolds and orientifolds with Scherk-Schwarz SUSY breaking
• Deformed Intersecting D6-Brane GUTS and N=1 SUSY
• Wilson lines corrections to gauge couplings from a field theory approach
• On Gauge couplings, "Large" extra-dimensions and the limit alpha'->0 of the String
• Exact Standard Model Structures from Intersecting Branes
• The Master Equation for the Prepotential-Pub