Yukawa Couplings for the Spinning Particle and the World Line Formalism
arXiv:hep-th/9502125 · doi:10.1016/0370-2693(95)00337-K
Abstract
We construct the world-line action for a Dirac particle coupled to a classical scalar or pseudo-scalar background field. This action can be used to compute loop diagrams and the effective action in the Yukawa model using the world-line path-integral formalism for spinning particles.
10 pages Latex, two uuencoded postscript figures. Note added at the end