Three-Graviton Amplitude in Berkovits-Vafa-Witten Variables

Abstract

We compute the three-graviton tree amplitude in Type IIB superstring theory compactified to six dimensions using the manifestly (6d) supersymmetric Berkovits-Vafa-Witten worldsheet variables. We consider two cases of background geometry: the flat space example R6xK3, and the curved example AdS3xS3xK3 with Ramond flux, and compute the correlation functions in the bulk.

14 pages, harvmac

References in corpus (3)

• Exact spectra of conformal supersymmetric nonlinear sigma models in two dimensions
• Relating the RNS and Pure Spinor Formalisms for the Superstring
• Lorentz Invariance of the Pure Spinor BRST Cohomology for the Superstring

Cited by in corpus (3)

• Tree-level amplitudes from the pure spinor superstring
• String amplitudes in the Hpp-wave limit of AdS3xS3
• Radial evolution in anti-de Sitter spacetime