Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Recoilless resonant neutrino experiment and origin of neutrino
  oscillations   We demonstrate that an experiment with recoilless resonant emission and
absorption of tritium antineutrinos could have an important impact on our
understanding of the origin of neutrino oscillations.

34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
2
The categories of this paper are: math
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an