Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Gluon Propagator in the Landau Gauge fixed Lattice QCD Simulation   We measured the gluon propagator in the Landau gauge fixed QCD Langevin
simulation and studied the infra-red behaviour of the gluon propagator. The 4^3
x 8 lattice simulation was done for quenched $\beta=3,4,5$ and unquenched
$\beta=4, \kappa=0.1,0.15,0.2$ using each 100 independent samples. The Landau
gauge fixing was done by an extension of the Fourier acceleration method with
the condition Max|div A|<10^{-4}, and the field A is related to the link
variable by U=exp A instead of the usual U-linear definition. We confirmed
gauge fixing with smearing preconditioning works perfectly for the purpose of
finding the global minimum of the squared norm of the gauge field when $\beta$
is large(e.g. $\beta=5$). Our simulation results suggests the possibility of a
realization of the infrared behaviour of the Gribov-Zwanziger theory.

15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
2
The categories of this paper are: math
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
20
The categories of this paper are: acc-phys