Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The unphysical nature of the SL(2,R) symmetry and its associated
  condensates in Yang-Mills theories   BRST cohomology methods are used to explain the origin of the SL(2,R)
symmetry in Yang-Mills theories. Clear evidence is provided for the unphysical
nature of this symmetry. This is obtained from the analysis of a local
functional of mass dimension two and constitutes a no-go statement for giving a
physical meaning to condensates associated with the symmetry breaking of
SL(2,R).

8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
3
The categories of this paper are: physics