Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collision system size dependence of dihadron azimuthal correlations in
  ultra-relativistic heavy ion collisions   The system size dependence of dihadron azimuthal correlations in
ultra-relativistic heavy ion collision is simulated by a multi-phase transport
model. The structure of correlation functions and yields of associated
particles show clear participant path-length dependences in collision systems
with a partonic phase. The splitting parameter ($D$) and Root Mean Square Width
($\Delta \phi_{rms}$) of away side correlation functions increase with
collision system size from $^{14}$N+$^{14}$N to $^{197}$Au+$^{197}$Au
collisions. The double-peak structure of away side correlation functions can
only be formed in sufficient "large" collision systems. These properties
provide some hints to study onset of deconfinement, which is related to the QCD
phase boundary and QCD critical point, by an energy-size scan.

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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
1
The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: eess
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The categories of this paper are: hep-th
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
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The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
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The categories of this paper are: adap-org
18
The categories of this paper are: econ