Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Observation of a $\Lambda_b^0-\overline{\Lambda}_b^0$ production
  asymmetry in proton-proton collisions at $\sqrt{s} = 7 \textrm{ and }
  8\,\textrm{TeV}$
26
The categories of this paper are: bayes-an
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio