Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dependence of temperatures and kinetic freeze-out volume on centrality
  in Au-Au and Pb-Pb collisions at high energy   Centrality-dependent double-differential transverse momentum spectra of
negatively charged particles ($\pi^-$, $K^-$ and $\bar p$) at
mid-(pseudo)rapidity interval in nuclear collisions are analyzed by the
standard distribution in terms of multi-component. The experimental data
measured in gold-gold (Au-Au) collisions by the PHENIX Collaboration at the
Relativistic Heavy Ion Collider (RHIC) and in lead-lead (Pb-Pb) collisions by
the ALICE Collaboration at the Large Hadron Collider (LHC) are studied. The
effective temperature, initial temperature, kinetic freeze-out temperature,
transverse flow velocity and kinetic freeze-out volume are extracted from the
fitting to transverse momentum spectra. We observed, that the mentioned five
quantities increase with the increase of event centrality due to the fact that
the average transverse momentum increases with the increase of event
centrality. This renders that larger momentum (energy) transfer and further
multiple-scattering had happened in central centrality.

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The categories of this paper are: astro-ph
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The categories of this paper are: econ
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The categories of this paper are: math-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: patt-sol
3
The categories of this paper are: physics
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The categories of this paper are: mtrl-th
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The categories of this paper are: adap-org
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The categories of this paper are: cs
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-th
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio
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The categories of this paper are: solv-int
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The categories of this paper are: comp-gas