• Corpus ID: 247158752

Confinement in QCD and generic Yang-Mills theories with matter representations

  title={Confinement in QCD and generic Yang-Mills theories with matter representations},
  author={Marco Frasca and Anish Ghoshal and Stefan Groote},
We derive the low-energy limit of quantum chromodynamics (QCD) and show that in the ’t Hooft limit, i.e. for a very large number of colors and increasing ’t Hooft coupling, quark confinement is recovered. The low energy limit of the theory turns out to be a non-local Nambu–Jona-Lasinio (NJL) model. The effect of non-locality, arising from a gluon propagator that fits quite well to the profile of an instanton liquid, is to produce a phase transition from a chiral condensate to an instanton… 
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