Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gluon propagator with dynamical quarks   We review recent work on the effects of quark loops on the gluon propagator
in the Landau gauge, relying mainly on the Schwinger-Dyson equations that
describe the two-point sector of QCD. Particularly important in this context is
the detailed study of how the standard gluon mass generation mechanism, which
is responsible for the infrared finiteness of the quenched gluon propagator, is
affected by the inclusions of dynamical quarks. This issue is especially
relevant and timely, given the qualitative picture that emerges from recent
unquenched lattice simulations. Our results demonstrate clearly that the gluon
mass generation persists, and that the corresponding saturation points of the
unquenched gluon propagators are progressively suppressed, as the number of
quark flavors increases.

31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph