Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of an inhomogeneous and expanding medium on signals of the QCD
  phase transition   According to a fluid dynamic expansion of the fireball we investigate how the
inhomogeneity of the system influences the chiral phase transition of QCD. We
compare the averaged values of the order parameter in equilibrium with that of
a homogeneous system. If the temperature is averaged over a certain region of
the fireball the corresponding correlation length does not diverge in an
expansion with a critical point.

28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph