Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrodynamic fluctuations and two-point correlations   We examine correlations of energy density induced by initial state
fluctuations, which are localized in both transverse and longitudinal extent.
The hotspots are evolved according to hydrodynamics in a background which
includes radial flow. Two-point energy density correlations from these hotspots
are computed as a function of the difference in azimuthal angle and rapidity.
Such localized perturbations occur naturally in the theory of hydrodynamic
fluctuations and may provide insight into some features of the two-particle
correlation data from RHIC and the LHC.

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The categories of this paper are: atom-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-fin
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-th
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The categories of this paper are: supr-con
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg