On generation of Abelian magnetic fields in SU(3) gluodynamics at high temperature

Details On generation of Abelian magnetic fields in SU(3) gluodynamics at high temperature On generation of Abelian magnetic fields in SU(3) gluodynamics at high temperature

2002-08-07

arxiv.org/abs/hep-ph/0208071v4

Eur.Phys.J. C33 (2004) 105-112

Physics

High Energy Physics

High Energy Physics - Phenomenology

some misprints were corrected

Scientific paper

10.1140/epjc/s2003-01577-5

The vacuum state of SU(3) gluodynamics at high temperature is investigated. A consistent approach including the calculation of either the spontaneously generated constant chromomagnetic isotopic $H_{3}$ and hypercharge $H_{8}$ fields or the polarization operator of charged gluons in this background is applied. It is shown within the effective potential including the one-loop plus daisy diagrams that the specific values of the fields deliver a global minimum to free energy. The spectrum of the transversal charged modes is stable at high temperature due to a gluon magnetic mass accounting for the vacuum fields. This leads to stable chromomagnetic fields in the deconfinement phase of QCD. A comparison with the results of other approaches is done.

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