Light-front higher-helicity interactions

Abstract

The reformulation, using Fock space vertex operators, of the original light-front cubic interaction terms for higher spin gauge fields is reviewed with comments on quantum higher spin gravity. The formalism is generalized to all orders in the interaction. The ensuing recursive equations for the higher order vertices, if they can be explicitly solved, will encode all interaction data into a denumerable set of rational functions of p⁺, the overall transverse momentum structure being fixed already at the kinematical level. A more thorough exposition can be found in the archive. This work was presented at the XVII European Workshop on String Theory, Padua, 5–9 September 2011.