Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Ghost Story II: Ghosts, Gluons and the Gluon condensate beyond the IR
  of QCD   Beyond the deep IR, the analysis of ghost and gluon propagators still keeps
very interesting non-perturbative information. The Taylor-scheme coupling can
be computed and applied to obtain the $\Lambda_{\rm QCD}$ parameter from Landau
gauge lattice simulations. Furthermore, a dimension-two gluon condensate, that
can be understood in the instanton liquid model, plays an important role in the
game.

11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th