Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: J/$\psi$ absorption in a multicomponent hadron gas   A model for anomalous $J/\Psi$ suppression in high energy heavy ion
collisions is presented. As the additional suppression mechanism beyond
standard nuclear absorption inelastic $J/\Psi$ scattering with hadronic matter
is considered. Hadronic matter is modeled as an evolving multi-component gas of
point-like non-interacting particles (MCHG). Estimates for the sound velocity
of the MCHG are given and the equation of state is compared with Lattice QCD
data in the vicinity of the deconfinement phase transition. The approximate
cooling pattern caused by longitudinal expansion is presented. It is shown that
under these conditions the resulting $J/\Psi$ suppression pattern agrees well
with NA38 and NA50 data.

36
The categories of this paper are: cmp-lg
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex