Thermal effective potential of the linear sigma model

1998/09/14 by Nicholas Petropoulos, Petropoulos, Nicholas · 1 citation
Physics and Astronomy · #Advanced Thermodynamics and Statistical Mechanics #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Quantum many-body systems #Statistical Mechanics and Entropy #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9809383

4 pages revtex, 5 eps figures, axodraw.sty, poster presented in the 5th International Workshop on Thermal Field Theories, Regensburg, Germany

arxiv created 1998/09/14 · openalex publication_date 1998/09/14 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We have attempted an approach to the chiral phase transition of QCD using the linear sigma model as an effective theory. In order to get some insight into how the phase transition could proceed, we have calculated the finite temperature effective potential of this model in the Hartree and large N approximations using the Cornwall-Jackiw-Tomboulis formalism of composite operators.

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• Cosmological phase transitions without high-temperature expansions

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