Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Applicability of viscous hydrodynamics at RHIC   In an earlier work (arXiv:0808.0953) we established that causal
Israel-Stewart viscous hydrodynamics is only accurate in RHIC applications at
very low shear viscosities 4 pi eta_s / s < ~ 1.5-2. We show here that the
region of applicability is significantly reduced if bulk viscosity plays a role
in the dynamics.

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The categories of this paper are: nlin
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The categories of this paper are: q-bio
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The categories of this paper are: stat
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: astro-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: cond-mat
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: physics
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: hep-ph