The exact quartic effective action for the type IIB superstring

1997/10/31 by A. Kehagias, Alex Kehagias, Hervé Partouche +1 · 7 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #hep-th

paper · pdf · doi:10.1016/s0370-2693(97)01430-5

published as Phys.Lett.B422:109-116,1998 · 14 pages, latex. minor corrections, version to appear in Phys.Lett.B

arxiv created 1997/12/16 · openalex publication_date 1998/03/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

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 R⁴ 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.

Citations

• Superstring modifications of Einstein's equations

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