Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shear Viscosity and Phase Diagram from Polyakov$-$Nambu$-$Jona-Lasinio
  model   We discuss a detailed study of the variation of shear viscosity, $\eta$, with
temperature and baryon chemical potential within the framework of
Polyakov$-$Nambu$-$Jona-Lasinio model. $\eta$ is found to depend strongly on
the spectral width of the quasi-particles present in the model. The variation
of $\eta$ across the phase diagram has distinctive features for different kinds
of transitions. These variations have been used to study the possible location
of the Critical End Point (CEP), and cross-checked with similar studies of
variation of specific heat. Finally using a parameterization of freeze-out
surface in heavy-ion collision experiments, the variation of shear viscosity to
entropy ratio has also been discussed as a function of the center of mass
energy of collisions.

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The categories of this paper are: atom-ph
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: hep-ex
9
The categories of this paper are: nlin
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
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The categories of this paper are: solv-int
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The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: astro-ph
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an