arXiv:hep-th/9502125·v4·High Energy Physics — Theory
Yukawa Couplings for the Spinning Particle and the World Line Formalism
Myriam Mondragon🇩🇪 · Lukas Nellen🇩🇪 · Michael G. Schmidt🇩🇪 · Christian Schubert🇩🇪
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.
Comments: 10 pages Latex, two uuencoded postscript figures. Note added at the end