Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for jet quenching effects in high multiplicity pp collisions at
  $\sqrt{\mathrm{s}}$=13 TeV   The ALICE Collaboration reports a search for jet quenching effects in pp
collisions at $\sqrt{\mathrm{s}}$=13 TeV, in events selected on high
multiplicity compared to the minimum bias population. The measurement is based
on the semi-inclusive acoplanarity distribution of jets recoiling from a
high-$p_\mathrm{T}$ trigger hadron. Significant broadening of the recoil jet
acoplanarity distribution is observed in high multiplicity pp collisions, in
both data and in simulations based on the PYTHIA model. Analysis is ongoing to
elucidate the origin of this effect.

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The categories of this paper are: physics
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: supr-con
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: acc-phys
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-th
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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: stat
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The categories of this paper are: patt-sol