Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disappearance of Transverse Flow in Central Collisions for Heavier
  Nuclei   For the first time, mass dependence of balance energy only for heavier
systems has been studied. Our results are in excellent agreement with the data
which allow us to predict the balance energy of U+U, for the first time, around
37-39 MeV/nucleon. Also our results indicate a hard equation of state along
with nucleon-nucleon cross-section around 40 mb.

21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin