# Reduced modular symmetries of threshold corrections and gauge coupling unification

@article{Bailin2014ReducedMS, title={Reduced modular symmetries of threshold corrections and gauge coupling unification}, author={David Bailin and Alex Love}, journal={Journal of High Energy Physics}, year={2014}, volume={2015}, pages={1-25} }

A bstractWe revisit the question of gauge coupling unification at the string scale in orbifold compactifications of the heterotic string for the supersymmetric Standard Model. In the presence of discrete Wilson lines threshold corrections with modular symmetry that is a subgroup of the full modular group arise. We find that reduced modular symmetries not previously reported are possible. We conjecture that the effects of such threshold corrections can be simulated using sums of terms built from…

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