Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multifragmentation in central collisions at intermediate energies: a
  fast process?   The kinematical characteristics of fragments and light particles observed in
central highly fragmented nuclear collisions at intermediate energies are
compared with the results of a model assuming that the initial momentum
distribution of the nucleons inside the two partners of the reaction has no
time to relax before the disassembly of the system. The rather good agreement
between the results of the model and the experimental data suggests that
multifragmentation is a fast process with a strong memory of the entrance
channel.

16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
19
The categories of this paper are: eess
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
2
The categories of this paper are: math
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph