https://doi.org/10.1140/epjc/s2003-01301-7
theoretical physics
Clockwork SUSY: supersymmetric Ward and Slavnov-Taylor identities at workin Green's functions and scattering amplitudes
1
Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
2
Institut für Theoretische Teilchenphysik, Universität Karlsruhe, 76128, Karlsruhe, Germany
* e-mail: ohl@physik.uni-wuerzburg.de
We study the cancellations among Feynman diagrams that implement the Ward and Slavnov-Taylor identities corresponding to the conserved supersymmetry current in supersymmetric quantum field theories. In particular, we show that the Faddeev-Popov ghosts of gauge and supersymmetries never decouple from the physical fields, even for abelian gauge groups. The supersymmetric Slavnov-Taylor identities provide efficient consistency checks for automatized calculations and can verify the supersymmetry of Feynman rules and the numerical stability of phenomenological predictions simultaneously.
© Springer-Verlag, 2003
