Covariant derivative expansion of Yang-Mills effective action at high temperatures

Details Covariant derivative expansion of Yang-Mills effective action at high temperatures Covariant derivative expansion of Yang-Mills effective action at high temperatures

2003-03-14

arxiv.org/abs/hep-ph/0303129v2

Phys.Rev. D68 (2003) 025012

Physics

High Energy Physics

High Energy Physics - Phenomenology

Minor changes. References added. Paper accepted for publication in Phys.Rev.D

Scientific paper

10.1103/PhysRevD.68.025012

Integrating out fast varying quantum fluctuations about Yang--Mills fields A_i and A_4, we arrive at the effective action for those fields at high temperatures. Assuming that the fields A_i and A_4 are slowly varying but that the amplitude of A_4 is arbitrary, we find a non-trivial effective gauge invariant action both in the electric and magnetic sectors. Our results can be used for studying correlation functions at high temperatures beyond the dimensional reduction approximation, as well as for estimating quantum weights of classical static configurations such as dyons.

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