Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mixed higher-order anisotropic flow and nonlinear response coefficients
  of charged particles in PbPb collisions at $\sqrt{s_\mathrm{NN}} =$ 2.76 and
  5.02 TeV   Anisotropies in the initial energy density distribution of the quark-gluon
plasma created in high energy heavy ion collisions lead to anisotropies in the
azimuthal distributions of the final-state particles known as collective flow.
Fourier harmonic decomposition is used to quantify these anisotropies. The
higher-order harmonics can be induced by the same order anisotropies (linear
response) or by the combined influence of several lower order anisotropies
(nonlinear response) in the initial state. The mixed higher-order anisotropic
flow and nonlinear response coefficients of charged particles are measured as
functions of transverse momentum and centrality in PbPb collisions at
nucleon-nucleon center-of-mass energies $\sqrt{s_\mathrm{NN}} =$ 2.76 and 5.02
TeV with the CMS detector. The results are compared with viscous hydrodynamic
calculations using several different initial conditions, as well as microscopic
transport model calculations. None of the models provides a simultaneous
description of the mixed higher-order flow harmonics and nonlinear response
coefficients.

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The categories of this paper are: supr-con
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The categories of this paper are: mtrl-th
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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: alg-geom
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The categories of this paper are: econ
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The categories of this paper are: hep-th
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The categories of this paper are: patt-sol
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The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: plasm-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: math
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The categories of this paper are: cs