Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A correlated-cluster model and the ridge phenomenon in hadron-hadron
  collisions   A study of the near-side ridge phenomenon in hadron-hadron collisions based
on a cluster picture of multiparticle production is presented. The near-side
ridge effect is shown to have a natural explanation in this context provided
that clusters are produced in a correlated manner in the collision transverse
plane.

34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess