S-matrices from 4d worldvolume

Abstract

We give an example of how conformal field theory methods in worldvolumes of dimension d > 2 could be used to calculate string-like amplitudes. The worldvolume propagator's logarithmic behavior is based on the use of worldvolume superspace (rather than the worldvolume ghost coordinates of a previous paper). Massless states have maximum spin d. Unitarity is not studied. We also touch on some related topics for ordinary spinning strings: calculating closed-string trees in worldsheet superspace, and zeroth-quantization of OSp(1|2) with zero-mode ghosts only.