Temperature dependence of the bag constant and the effective lagrangian for gauge fields at finite temperatures

B. Müller, J. Rafelski

Research output: Contribution to journalArticle

66 Scopus citations


We calculate the free energy for a gauge field at finite temperature in the presence of a constant gauge magnetic field in the one-loop approximation, omitting unstable modes. The effect of finite temperature on the approximate "true" Savvidy ground state of QCD is derived. A phase transition to the perturbative ground state at Tcr=1.5Bs 1 4 ≈210 MeV is found.

Original languageEnglish (US)
Pages (from-to)111-118
Number of pages8
JournalPhysics Letters B
Issue number1-2
StatePublished - Apr 30 1981
Externally publishedYes


ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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