Including a confining background field in Dyson-Schwinger equations makes Lee-Yang edge singularities terminate at the Roberge-Weiss line, mu_i = pi T / 3, above T = 0.235 GeV, while leaving the critical exponent unchanged.
Aspects of confinement within non-Abelian gauge theories
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abstract
These lectures cover two aspects: first, irrespectively of the particular approach followed to tackle the QCD phase diagram, we introduce some tools that help discussing the confinement/deconfinement transition in the continuum; second, within one particular continuum approach, based on the Curci-Ferrari model, we illustrate the use of these various notions in order the describe to the confinement/deconfinement transition.
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Lee Yang edge singularities of QCD in association with Roberge-Weiss phase transition and chiral phase transition
Including a confining background field in Dyson-Schwinger equations makes Lee-Yang edge singularities terminate at the Roberge-Weiss line, mu_i = pi T / 3, above T = 0.235 GeV, while leaving the critical exponent unchanged.