Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Diffuse flux of PeV neutrinos from centrifugally accelerated protons in
  active galactic nuclei
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc