Finite baryon density effects on gauge field dynamics

Details Finite baryon density effects on gauge field dynamics Finite baryon density effects on gauge field dynamics

2001-08-03

arxiv.org/abs/hep-ph/0108034v1

JHEP 0109:029,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages

Scientific paper

10.1088/1126-6708/2001/09/029

We discuss the effective action for QCD gauge fields at finite temperatures and densities, obtained after integrating out the hardest momentum scales from the system. We show that a non-vanishing baryon density induces a charge conjugation (C) odd operator to the gauge field action, proportional to the chemical potential. Even though it is parametrically smaller than the leading C even operator, it could have an important effect on C odd observables. The same operator appears to be produced by classical kinetic theory, allowing in principle for a non-perturbative study of such processes.

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