Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Can We Observe the Quark Gluon Plasma in Cosmic Ray Showers ?   The possibility of detection of some features of high energy particle
interactions with detectors placed at medium depths underground through studies
on high energy muons is investigated. These muons carry information about the
early interactions occurring during the development of the hadron cascade near
the top of the atmosphere. They might reveal the effects resulting from
creation of quark gluon plasma in interactions of ultra high energy cosmic ray
iron nuclei with air nuclei.

10
The categories of this paper are: q-bio
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
22
The categories of this paper are: chao-dyn
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin