Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The background for Cherenkov gluons at RHIC and LHC energies   The pseudorapidity distribution of centers of dense isolated groups of
particles in HIJING model is determined. It can be considered as the background
for Cherenkov gluons. If peaks over this background were found in experiment,
they would indicate the onset of new collective effects.

13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
17
The categories of this paper are: q-fin
23
The categories of this paper are: solv-int
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat