Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: ZeV Air Showers: The View from Auger   In this article I briefly discuss the characteristics of the Auger
observatories paying particular attention to the role of inclined showers, both
in the search for high energy neutrino interactions deep in the atmosphere and
as an alternative tool for the study of cosmic rays, particulartly their
composition.

35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
24
The categories of this paper are: dg-ga
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an