Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the choice of colliding beams to study deformation effects in
  relativistic heavy ion collisions   It has been suggested that collisions between deformed shapes will lead to
interesting effects on various observables such as K production and elliptic
flow. Simple formulae can be written down which show how to choose the
colliding beams which will maximise the effects of deformation.

16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
21
The categories of this paper are: adap-org
18
The categories of this paper are: econ
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol