Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dissociative electron attachment to pulsed supersonic O$_2$ jet :
  Violation of $\Sigma^{+} \rightleftharpoons \Sigma^{-}$ selection rule and
  dependence on carrier gas proportion
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex
26
The categories of this paper are: bayes-an