Particles in the superworldline and BRST
arXiv:2207.02041
Abstract
In this short note we discuss N-supersymmetric worldlines of relativistic massless particles and review the known result that physical spin-N/2 fields are in the first BRST cohomology group. For N=1,2,4 emphasis is given to particular deformations of the BRST differential, that implement either a covariant derivative for a gauge theory or a metric connection in the target space seen by the particle. In the end, we comment about the possibility of incorporating Ramond-Ramond fluxes in the background.
9 pages, for the proceedings to the 42th Winter School Geometry and Physics, Srní, 15-22 January 2022