Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Functional renormalization group study of the two-flavor linear sigma
  model in the presence of the axial anomaly   The $SU(2)_A \times U(2)_V$-symmetric chiral linear sigma model in the
presence of the axial anomaly is studied in the local-potential approximation
of the Functional Renormalization Group (FRG). The renormalization group (RG)
flow is investigated in a truncation which reproduces recent results for the
$U(2)_A \times U(2)_V$-symmetric model in the limit of vanishing axial anomaly
strength. We search for the conjectured O(4) fixed point in the presence of the
$U(1)_A$ anomaly and analyze its stability properties.

37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn