New Spacetime-Supersymmetric Methods for the Superstring

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.

Talk at Strings '95 conference, 12 pages tex