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Paper detail

Superstring Threshold Corrections to Yukawa Couplings

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.

preprint1992arXivOpen access
I. AntoniadisE. GavaK. S. NarainT. R. Taylor
hep-phhep-th
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I. AntoniadisE. GavaK. S. NarainT. R. Taylor

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