1999/09/14 by Dietrich Bodeker, Bodeker, Dietrich
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9909375
11 pages, 3 figures; plenary talk given at Conference on Strong and Electroweak Matter (SEWM 98), Copenhagen, Denmark, 2-5 Dec 1998
arxiv created 1999/09/14 · arxiv updated 2009/11/30
The dynamics of soft (|p|∼ g2 T) non-Abelian gauge fields at finite temperature is non-perturbative. The effective theory for the soft fields can be obtained by first integrating out the momentum scale T, which yields the well known hard thermal loop effective theory. Then the latter is used to integrate out the scale gT. One obtains a Boltzmann equation, which can be solved in a leading logarithmic approximation. The resulting effective theory for the soft fields is described by a Langevin equation, and it is well suited for non-perturbative lattice simulations.