Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The generalised infrared structure of the gluon propagator   Gauge theory correlators are potentially more singular in the infrared than
those in non-gauge theories. We determine the implications that these
singularities have on the spectrum of the theory, proving that the appearance
of generalised poles implies the existence of on-shell states with fixed mass,
but zero norm. For quantum chromodynamics these poles have direct relevance for
the confinement of coloured states. Using lattice data for the Landau gauge
gluon propagator we subsequently test for the presence of these poles,
establishing that the data is indeed consistent with such a component.

28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
35
The categories of this paper are: mtrl-th
17
The categories of this paper are: q-fin
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol