Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effect of changes in meson properties in a nuclear medium - $J/\Psi$
  dissociation in nuclear matter, and meson-nucleus bound states   We discuss the effect of changes in meson properties in a nuclear medium on
physical observables, notably, $J/\Psi$ dissociation on pion and $\rho$ meson
comovers in relativistic heavy ion collisions, and the prediction of the
$\omega$-, $\eta$- and $\eta'$-nuclear bound states.

29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
31
The categories of this paper are: ao-sci
6
The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph