Constant External Fields in Gauge Theory and the Spin 0 , 1 2 , 1 Path Integrals

@inproceedings{Reuter1996ConstantEF,
  title={Constant External Fields in Gauge Theory and the Spin 0 , 1 2 , 1 Path Integrals},
  author={Martin Reuter and Christian Schubert},
  year={1996}
}
We investigate the usefulness of the “string-inspired technique” for gauge theory calculations in a constant external field background. Our approach is based on Strassler’s worldline path integral approach to the Bern-Kosower formalism, and on the construction of worldline (super–) Green’s functions incorporating external fields as well as internal propagators. The worldline path integral representation of the gluon loop is reexamined in detail. We calculate the twoloop effective actions… CONTINUE READING
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