Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: An effective theory for hot non-Abelian dynamics   I try to explain some recent progress in understanding the non-perturbative
dynamics of hot non-Abelian gauge theories. The non-perturbative physics is due
to soft spatial momenta $|\vec{p}|\sim g^2 T$ where $g$ is the gauge coupling
and $T$ is the temperature. An effective theory for the soft field modes is
obtained by integrating out the field modes with momenta of order $T$ and of
order $g T$ in a leading logarithmic approximation. In this effective theory
the time evolution of the soft fields is determined by a local Langevin-type
equation. This effective theory determines the parametric form of the rate for
hot electroweak baryon number violation as $\Gamma = \kappa g^{10} \log(1/g)
T^4$. The non-perturbative coefficient $\kappa$ is independent of the gauge
coupling and it can be computed by solving the effective equations of motion on
a lattice.

5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
27
The categories of this paper are: comp-gas
31
The categories of this paper are: ao-sci