Theory of the Deconfinement in QCD

The phenomenon of the deconfinement—the spectacular drop of the colorelectric string tension at the critical temperature —is studied within the method of field correlators (FCM) taking into account directly the contribution of the gluon condensate into the hadronic free energy. Using the resulting e...

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Bibliographic Details
Published in:Physics of atomic nuclei 2023-12, Vol.86 (6), p.1256-1266
Main Authors: Lukashov, M. S., Simonov, Yu. A.
Format: Article
Language:English
Subjects:
Analysis
Condensates
Critical temperature
ELEMENTARY PARTICLES AND FIELDS/Theory
Free energy
Gluons
Magnetic fields
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quarks
Strings
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Summary:The phenomenon of the deconfinement—the spectacular drop of the colorelectric string tension at the critical temperature —is studied within the method of field correlators (FCM) taking into account directly the contribution of the gluon condensate into the hadronic free energy. Using the resulting expressions for the free energy as a sum of the gluon condensate (the vacuum energy) and the hadronic pressure one obtains the possibility to calculate the deconfinement temperature and the temperature behavior of the string tension and the gluonic condensate below . The connection between the string tension and the quark condensate found in the framework of FCM allows to predict also the latter as a function of . These results are compared to the known lattice data of , , for hadronic media with different and and in the external magnetic field . The good agreement of the results of this approach with lattice data is demonstrated.
ISSN:1063-7788
1562-692X
DOI:10.1134/S1063778824010332