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arXiv · hep-th/9710023

On the exact quartic effective action for the type IIB superstring

A. Kehagias·H. Partouche
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Abstract

We propose a four-point effective action for the graviton, antisymmetric two-forms, dilaton and axion of type IIB superstring in ten dimensions. It is explicitly SL(2,Z)-invariant and reproduces the known tree-level results. Perturbatively, it has only one-loop corrections for the NS-NS sector, generalizing the non-renormalization theorem of the R^4 term. Finally, the non-perturbative corrections are of the expected form, namely, they can be interpreted as arising from single D-instantons of multiple charge.

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A. Kehagias, H. Partouche. 1997-12-16. On the exact quartic effective action for the type IIB superstring. https://doi.org/10.1016/s0370-2693(97)01430-5

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