Improved Methods for Supergraphs

  title={Improved Methods for Supergraphs},
  author={M. Grisaru and W. Siegel and M. Ro{\vc}ek},
  journal={Nuclear Physics},
We introduce some new techniques into superfield perturbation theory which allow considerable simplifications in calculations. As a result, we show that all contributions to the effective action can be written as integrals over a single d4θ. We also give the background group field formalism for supersymmetric non-abelian gauge theories. To illustrate our methods, we give examples of loop calculations: in particular, we show that in O(4) extended supersymmetric non-abelian gauge theories all one… Expand
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