Construction of $R^4$ Terms in N=2 D=8 Superspace

Abstract

Using linearized superfields, $R^4$ terms in the Type II superstring effective action compactified on $T^2$ are constructed as integrals in N=2 D=8 superspace. The structure of these superspace integrals allows a simple proof of the $R^4$ non-renormalization theorems which were first conjectured by Green and Gutperle.

15 pages harvmac tex (reference 2 is corrected and some details are added to the conclusion)

References in corpus (4)

• Effects of D-instantons
• On $R^4$ threshold corrections in IIB string theory and (p,q) string instantons
• Higher Order Graviton Scattering in M(atrix) Theory
• Calculable e^{-1/λ} Effects

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