Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Geometric Parameterization of $J/\Psi$ Absorption in Heavy Ion
  Collisions   We calculate the survival probability of $J/\Psi$ particles in various
colliding systems using a Glauber model. An analysis of recent data has
reported a $J/\Psi$-nucleon breakup cross section of 6.2$\pm$0.7 mb derived
from an exponential fit to the ratio of $J/\Psi$ to Drell-Yan yields as a
function of a simple, linearly-averaged mean path length through the nuclear
medium. Our calculations indicate that, due to the nature of the calculation,
this approach yields an apparent breakup cross section which is systematically
lower than the actual value.

2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
23
The categories of this paper are: solv-int
33
The categories of this paper are: plasm-ph