Screened massive expansion of the quark propagator in the Landau gauge

@article{Comitini2021ScreenedME,
  title={Screened massive expansion of the quark propagator in the Landau gauge},
  author={Giorgio Comitini and Daniel J. Rizzo and Massimiliano Battello and Fabio Siringo},
  journal={Physical Review D},
  year={2021}
}
The infrared behavior of the quark propagator is studied at one loop and in the Landau gauge (ξ = 0) using the screened massive expansion of full QCD and three different resummation schemes for the quark self-energy. The shift of the expansion point of perturbation theory, which defines the screened expansion, together with a non-standard renormalization of the bare parameters, proves sufficient to describe the dynamical generation of an infrared quark mass also in the chiral limit… Expand

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