Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Confinement and gluon propagator in Coulomb gauge QCD   We consider the effects of the Faddeev-Popov determinant in the Coulomb gauge
on the confinement properties of the QCD vacuum. We show that the the
determinant is needed to regularize the otherwise divergent functional
integrals near the Gribov horizon but still enables large field configurations
to generate IR enhanced running coupling. The physical gluon propagator is
found to be strongly suppressed in the
  IR consistent with expectations from lattice gauge calculations.

2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex