Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the participant-spectator matter and thermalization of neutron-rich
  systems in heavy-ion collisions   We study the participant-spectator matter at the energy of vanishing flow for
neutron-rich systems. Our study reveals similar behaviour of
articipant-spectator for neutron-rich systems as for stable systems and also
points towards nearly mass independence behaviour of participant-spectator
matter for neutron-rich systems at the energy of vanishing flow. We also study
the thermalization reached in the reactions of neutron-rich systems.

21
The categories of this paper are: adap-org
19
The categories of this paper are: eess
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph