Polyakov loop correlator in perturbation theory

Polyakov loop correlator in perturbation theory

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 adjoin...

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Veröffentlicht in:arXiv.org 2020-02
Hauptverfasser: Berwein, Matthias, Brambilla, Nora, Petreczky, Peter, Vairo, Antonio
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Sprache:eng
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Correlation analysis
Multipoles
Perturbation theory
Physics - High Energy Physics - Lattice
Physics - High Energy Physics - Phenomenology
Physics - High Energy Physics - Theory
Physics - Nuclear Theory
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creator Berwein, Matthias
Brambilla, Nora
Petreczky, Peter
Vairo, Antonio
description 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 find that the two definitions agree at leading order in the multipole expansion, but differ at first order in the quark-antiquark distance.
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subjects Correlation analysis
Multipoles
Perturbation theory
Physics - High Energy Physics - Lattice
Physics - High Energy Physics - Phenomenology
Physics - High Energy Physics - Theory
Physics - Nuclear Theory
title Polyakov loop correlator in perturbation theory
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