Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: One loop gluon form factor and freezing of alpha_s in the
  Gribov-Zwanziger QCD Lagrangian   We use the Gribov-Zwanziger Lagrangian in QCD to evaluate the one loop
correction to the gluon propagator as a function of the Gribov volume and
verify that the propagator vanishes in the infrared limit. Using the
corresponding correction to the Faddeev-Popov ghost propagator we construct the
renormalization group invariant coupling constant, alpha^eff_S(p^2), from the
gluon and ghost form factors and verify, using the Gribov mass gap condition,
that it freezes out at zero momentum to a non-zero value. This is qualitatively
consistent with other approaches. We also show that there is an enhancement of
the propagator of one of the Zwanziger ghosts at two loops similar to that
which occurs for the Faddeev-Popov ghosts. From the exact evaluation of the
form factors we examine power corrections for the gluon propagator and the
effective coupling. We find that both have the same qualitative behaviour in
that the leading power correction is O(1/p^2) and not O(1/(p^2)^2).

28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an