Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ghost dissection   We show that a necessary condition to have a positive Landau-gauge ghost
propagator in d=2 Yang-Mills theories is a vanishing zero-momentum gluon
propagator. Our proof is based on a careful scrutinizing of the ghost
Dyson-Schwinger equation. Said otherwise, the Gribov no-pole condition forbids
the occurrence of the "decoupling/massive" gluon propagator solution in d=2, in
sharp contrast with d=3 and 4, but consistent with state-of-the-art lattice
data.

31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
16
The categories of this paper are: stat