Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Particle abundances and spectra in the hydrodynamical description of
  relativistic nuclear collisions with light projectiles   We show that a hydrodynamical model with continuous particle emission instead
of sudden freeze out may explain both the observed strange particle and pion
abundances and transverse mass spectra for light projectile at SPS energy. We
found that the observed enhancement of pion production corresponds, within the
context of continuous emission, to the maximal entropy production.

15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
17
The categories of this paper are: q-fin
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics