Constraining Higher Derivative Supergravity with Scattering Amplitudes

TL;DR

This paper investigates how supersymmetry limits higher derivative corrections in type IIB supergravity using superamplitudes, confirming non-renormalization theorems and extending their scope.

Contribution

It introduces a novel approach combining superamplitude constraints and string theory results to analyze supersymmetric deformations of supergravity.

Findings

Confirmed non-renormalization theorem of Green and Sethi

Extended non-renormalization results to broader cases

Provided a simple argument linking superamplitudes and string theory

Abstract

We study supersymmetry constraints on higher derivative deformations of type IIB supergravity by consideration of superamplitudes. Combining constraints of on-shell supervertices and basic results from string perturbation theory, we give a simple argument for the non-renormalization theorem of Green and Sethi, and some of its generalizations.