Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclear modification of J/psi production in Pb-Pb collisions at
  sqrt(s_NN)=2.76 TeV   ALICE is the dedicated heavy-ion experiment at the LHC. Due to the unique
particle identification capabilities of the central barrel detectors
(|eta|<0.9), J/psi can be measured in the di-electron channel in the very
demanding environment of central Pb-Pb collisions at the LHC. In addition J/psi
are measured at forward rapidity (2.5<y<4) with a dedicated muon spectrometer.
ALICE is the only LHC experiment with an acceptance for J/psi that reaches down
to p_T=0 at both, mid- and forward rapidity. Preliminary results on the nuclear
modification factor of the inclusive J/psi production at mid- and forward
rapidity in Pb-Pb collisions at sqrt(s_NN)=2.76 TeV are presented.

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The categories of this paper are: bayes-an
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The categories of this paper are: solv-int
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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: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: chem-ph
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The categories of this paper are: hep-th
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The categories of this paper are: math
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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: nlin
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The categories of this paper are: ao-sci
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The categories of this paper are: funct-an