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arXiv · hep-th/9601037

Universal moduli-dependent thresholds in Z(2)xZ(2) orbifolds

P. M. Petropoulos·J. Rizos
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Abstract

In the context of a recently proposed method for computing exactly string loop corrections regularized in the infra-red, we determine and calculate the universal moduli-dependent part of the threshold corrections to the gauge couplings for the symmetric $Z_2\times Z_2$ orbifold model. We show that these corrections decrease the unification scale of the underlying effective field theory. We also comment on the relation between this infra-red regularization scheme and other proposed methods.

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P. M. Petropoulos, J. Rizos. 1996-08-14. Universal moduli-dependent thresholds in Z(2)xZ(2) orbifolds. https://doi.org/10.1016/0370-2693(96)00230-4

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