Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correlations between azimuthal anisotropy Fourier harmonics in PbPb
  collisions at $\sqrt{s_{_{\mathrm{NN}}}}=2.76$ TeV in the HYDJET++ and AMPT
  models   Correlations between azimuthal anisotropy Fourier harmonics $v_{n}$ ($n = 2,
3, 4$) are studied using the events from PbPb collisions at
$\sqrt{s_{_{\mathrm{NN}}}}=2.76$ TeV generated by the HYDJET++ and AMPT models,
and compared to the corresponding experimental results obtained by the ATLAS
Collaboration. The Fourier harmonics $v_{n}$ are measured over a wide
centrality range using the two-particle azimuthal correlation method. The
slopes of the $v_{2}$--$v_{3}$ correlation from both models are in a good
agreement with the ATLAS data. The HYDJET++ model predicts a stronger slope for
the $v_{2}$--$v_{4}$ and $v_{3}$--$v_{4}$ correlations than the ones
experimentally measured, while the results from the AMPT model are in a rather
good agreement with the experimental results. In contrast to the HYDJET++
predictions, the AMPT model predicts a boomerang-like shape in the structure of
the correlations as found in the experimental data.

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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: cond-mat
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The categories of this paper are: gr-qc
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The categories of this paper are: alg-geom
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: chao-dyn
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The categories of this paper are: comp-gas
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-bio
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The categories of this paper are: patt-sol
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The categories of this paper are: nlin
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The categories of this paper are: dg-ga
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The categories of this paper are: hep-ex
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The categories of this paper are: chem-ph