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Infrared asymptotics of the quark propagator in nonabelian gauge theories I

  • Elementary Particles and Fields
  • Published:
Acta Physica Hungarica

Abstract

Assuming ak −4 singularity for the infrared behaviour of the gluon propagator, it is shown that the quark propagator is an entire function ofp 2 in the infrared region and it has an essential singularity atg 2=0 forp 2 ≠m 2 in axial gauges. A similar behaviour is shown in a Bloch-Nordsieck-type model, too.

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Authors and Affiliations

  1. Institute for Theoretical Physics, Roland Eötvös University, 1088, Budapest, Hungary

    G. Pócsik

  2. Computing Centre, Roland Eötvös University, 1088, Budapest, Hungary

    T. Torma

Authors
  1. G. Pócsik
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  2. T. Torma
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Dedicated to Prof. K. Nagy on his 60th birthday

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Pócsik, G., Torma, T. Infrared asymptotics of the quark propagator in nonabelian gauge theories I. Acta Physica Hungarica 62, 107–114 (1987). https://doi.org/10.1007/BF03155960

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  • DOI: https://doi.org/10.1007/BF03155960

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