Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the Role of Initial Conditions and Final State Interactions in
  Ultrarelativistic Heavy Ion Collisions   We investigate the rapidity dependence of the elliptical flow in heavy ion
collisions at 200 GeV (cms), by employing a three-dimensional hydrodynamic
evolution, based on different initial conditions, and different freeze-out
scenarios. It will be shown that the form of pseudo-rapidity ($\eta$)
dependence of the elliptical flow is almost identical to space-time-rapidity
($\eta_{s}$) dependence of the initial energy distribution, independent of the
freeze-out prescriptions.

10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
36
The categories of this paper are: cmp-lg
23
The categories of this paper are: solv-int
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The categories of this paper are: nlin
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The categories of this paper are: adap-org
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The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an