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arXiv · hep-th/9605145

Higher-Derivative Gravity in String Theory

Kristin Forger·Burt A. Ovrut·Stefan J. Theisen·Daniel Waldram
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Abstract

We explicitly extract the structure of higher-derivative curvature-squared terms at genus 0 and 1 in the d=4 heterotic string effective action compactified on symmetric orbifolds by computing on-shell S-matrix superstring amplitudes. In particular, this is done within the context of calculating the graviton 4-point amplitude. We also discuss the moduli-dependent gravitational threshold corrections to the coupling associated with the CP even quadratic curvature terms.

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Kristin Forger, Burt A. Ovrut, Stefan J. Theisen, Daniel Waldram. 1996-05-21. Higher-Derivative Gravity in String Theory. https://doi.org/10.1016/s0370-2693(96)01175-6

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