Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Axion mass in the case of post-inflationary Peccei-Quinn symmetry
  breaking   The axion not only solves the strong CP puzzle, but it also may be the main
constituent of cold dark matter. We review the axion dark matter predictions
for the case that the Peccei-Quinn symmetry is restored after inflation.

11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph
32
The categories of this paper are: atom-ph