Polyakov loop correlator in perturbation theory

  title={Polyakov loop correlator in perturbation theory},
  author={Matthias Berwein and Nora Brambilla and Peter Petreczky and Antonio Vairo},
  journal={Physical Review D},
We study the Polyakov loop correlator in the weak coupling expansion and show how the perturbative series re-exponentiates into singlet and adjoint contributions. We calculate the order $g^7$ correction to the Polyakov loop correlator in the short distance limit. We show how the singlet and adjoint free energies arising from the re-exponentiation formula of the Polyakov loop correlator are related to the gauge invariant singlet and octet free energies that can be defined in pNRQCD, namely we… 

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  • A. Vairo
  • Physics
    Proceedings of XIII Quark Confinement and the Hadron Spectrum — PoS(Confinement2018)
  • 2019
We review our present knowledge of the Polyakov loop, the correlator of Polyakov loops and the singlet correlator in thermal QCD from the point of view of perturbation theory and lattice QCD.



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