Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass hierarchy determination using atmospheric neutrinos for small
  $\theta_{13}$   This paper is withdrawn and a corrected, extended and more comprehensive
paper is put on as arXiv:0905.2382.

13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys