Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1999-01-04
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 pages, 1 figure, title changed, discussion on the classical approximation included
Scientific paper
10.1016/S0550-3213(99)00814-7
We derive an effective classical theory for real-time SU($N$) gauge theories at high temperature. By separating off and integrating out quantum fluctuations we obtain a 3D classical path integral over the initial fields and conjugate momenta. The leading hard mode contribution is incorporated in the equations of motion for the classical fields. This yields the gauge invariant hard thermal loop (HTL) effective equation of motion. No gauge-variant terms are generated as in treatments with an intermediate momentum cut-off. Quantum corrections to classical correlation functions can be calculated perturbatively. The 4D renormalizability of the theory ensures that the 4D counterterms are sufficient to render the theory finite. The HTL contributions of the quantum fluctuations provide the counterterms for the linear divergences in the classical theory.
Nauta Bert-Jan
van Weert Ch. G.
No associations
LandOfFree
Effective Classical Theory for Real-Time SU(N) Gauge Theories at High Temperature does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effective Classical Theory for Real-Time SU(N) Gauge Theories at High Temperature, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effective Classical Theory for Real-Time SU(N) Gauge Theories at High Temperature will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-426657