Dynamics of the Polyakov loops in QCD

A non-perturbative method of Field Correlators is applied to calculate the Polyakov loop dependence on temperature, \(L(T)\), in the 2+1 flavor QCD with small quark masses, so the only relevant scale is the color-electric string tension \(\sigma(T)\). Polyakov loop in the temperature range 100 MeV \...

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Bibliographic Details
Published in:arXiv.org 2019-04
Main Authors: Abramchuk, R A, Khaidukov, Z V, Simonov, Yu A
Format: Article
Language:English
Subjects:
Correlators
Flavor (particle physics)
Quantum chromodynamics
Temperature dependence
Online Access:Get full text
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Summary:A non-perturbative method of Field Correlators is applied to calculate the Polyakov loop dependence on temperature, \(L(T)\), in the 2+1 flavor QCD with small quark masses, so the only relevant scale is the color-electric string tension \(\sigma(T)\). Polyakov loop in the temperature range 100 MeV \(\lesssim T\lesssim\) 400 MeV is expressed via the heavy-light meson mass that decreases with \(T\) as \(\sqrt{\sigma (T)}\). The latter is deduced from a gradually vanishing chiral condensate. The resulting \(L(T)\) is in good agreement with recent lattice data.
ISSN:2331-8422