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arXiv · hep-th/9212045

Superstring Threshold Corrections to Yukawa Couplings

I. Antoniadis·E. Gava·K. S. Narain·T. R. Taylor
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Abstract

A general method of computing string corrections to the Kähler metric and Yukawa couplings is developed at the one-loop level for a general compactification of the heterotic superstring theory. It also provides a direct determination of the so-called Green-Schwarz term. The matter metric has an infrared divergent part which reproduces the field-theoretical anomalous dimensions, and a moduli-dependent part which gives rise to threshold corrections in the physical Yukawa couplings. Explicit expressions are derived for symmetric orbifold compactifications.

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I. Antoniadis, E. Gava, K. S. Narain, T. R. Taylor. 1992-12-07. Superstring Threshold Corrections to Yukawa Couplings. https://doi.org/10.1016/0550-3213(93)90095-7

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