Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comment on "The QCD axion beyond the classical level: A lattice study"   We rebut the claim by Nakamura and Schierholz [1] that the mass of a
potential axion needs to be no less than ~230MeV pointing out errors in both
their analytic argument and numerical simulations.

27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex