Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Suppression and azimuthal anisotropy of prompt and nonprompt J/psi
  production in PbPb collisions at sqrt(s[NN]) = 2.76 TeV   The nuclear modification factor RAA and the azimuthal anisotropy coefficient
v[2] of prompt and nonprompt (i.e. those from decays of b hadrons) J/psi
mesons, measured from PbPb and pp collisions at sqrt(s[NN]) = 2.76 TeV at the
LHC, are reported. The results are presented in several event centrality
intervals and several kinematic regions, for transverse momenta pt > 6.5 GeV/c
and rapidity abs(y) < 2.4, extending down to pt = 3 GeV/c in the 1.6 < abs(y) <
2.4 range. The v[2] of prompt J/psi is found to be nonzero, but with no strong
dependence on centrality, rapidity, or pt over the full kinematic range
studied. The measured v[2] of nonprompt J/psi is consistent with zero. The RAA
of prompt J/psi exhibits a suppression that increases from peripheral to
central collisions but does not vary as a function of either y or pt in the
fiducial range. The nonprompt J/psi RAA shows a suppression which becomes
stronger as rapidity or pt increase. The v[2] and nuclear suppression of open
and hidden charm, and of open charm and beauty, are compared.

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The categories of this paper are: chao-dyn
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: cs
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The categories of this paper are: nlin
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The categories of this paper are: cmp-lg
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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an
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The categories of this paper are: acc-phys
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The categories of this paper are: astro-ph
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The categories of this paper are: stat
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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: math-ph