Instruct: Identify the main and secondary category of Arxiv papers based on the titles
Query: $\Lambda_{\rm c}^+$ production in pp collisions at $\sqrt{s} = 7$ TeV
  and in p-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
2
The categories of this paper are: math
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
26
The categories of this paper are: bayes-an
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics