Barton expansion and the path integral approach in thermal field theory.

@article{Brandt1996BartonEA,
  title={Barton expansion and the path integral approach in thermal field theory.},
  author={S Brandt and Mckeon},
  journal={Physical review. D, Particles and fields},
  year={1996},
  volume={54 10},
  pages={6435-6443}
}
  • S Brandt, Mckeon
  • Published 1996 in Physical review. D, Particles and fields
It has been shown how on-shell forward scattering amplitudes (the “Barton expansion”) and quantum mechanical path integral (QMPI) can both be used to compute temperature dependent effects in thermal field theory. We demonstrate the equivalence of these two approaches and then apply the QMPI to compute the high temperature expansion for the fourpoint… CONTINUE READING