Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time evolution of the sQGP with hydrodynamic models   The strongly interacting Quark-Gluon-Plasma (sQGP) created in relativistic
nucleus-nucleus collisions, can be described by hydrodynamic models. Low energy
hadrons are created after the so called freeze-out of this medium, thus their
distributions reveal information about the final state of the sQGP. Photons are
created throughout the evolution, so their distributions carry information on
the whole expansion and cool down. We show results from an analytic, 1+3
dimensional perfect relativistic hydrodynamic solution, and compare hadron and
photon observables to RHIC data. We extract an average equation of state of the
expanding quark matter from this comparison. In the second part of this paper,
we generalize the before mentioned analytic solution of relativistic perfect
fluid hydrodynamics to arbitrary temperature-dependent Equation of State. We
investigate special cases of this class of solutions, in particular, we present
hydrodynamical solutions with an Equation of State determined from lattice QCD
calculations.

16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
27
The categories of this paper are: comp-gas
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex