Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: Constraints for quasi-elastic neutron reflections in the range
  dE~10^(-12)-10^(-9) eV
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
16
The categories of this paper are: stat
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th