New Spacetime-Supersymmetric Methods for the Superstring
Nathan Berkovits
Abstract
In this talk, the new spacetime-supersymmetric description of the superstring is reviewed and some of its applications are described. These applications include the manifestly spacetime-supersymmetric calculation of scattering amplitudes, the construction of a super-Poincaré invariant open superstring field theory, and the beta-function calculation of low-energy equations of motion in superspace. Parts of this work have been done in collaboration with deBoer, van Nieuwenhuizen, Roček, Sezgin, Skenderis, Stelle, and especially, Siegel and Vafa.
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