Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kinetic freeze-out temperatures in central and peripheral collisions:
  Which one is larger?   The kinetic freeze-out temperatures, $T_0$, in nucleus-nucleus collisions at
the Relativistic Heavy Ion Collider (RHIC) and Large Hadron Collider (LHC)
energies are extracted by four methods: i) the Blast-Wave model with
Boltzmann-Gibbs statistics (the BGBW model), ii) the Blast-Wave model with
Tsallis statistics (the TBW model), iii) the Tsallis distribution with flow
effect (the improved Tsallis distribution), and iv) the intercept in
$T=T_0+am_0$ (the alternative method), where $m_0$ denotes the rest mass and
$T$ denotes the effective temperature which can be obtained by different
distribution functions. It is found that the relative sizes of $T_0$ in central
and peripheral collisions obtained by the conventional BGBW model which uses a
zero or nearly zero transverse flow velocity, $\beta_T$, are contradictory in
tendency with other methods. With a re-examination for $\beta_T$ in the first
method in which $\beta_T$ is taken to be $\sim(0.40\pm0.07)c$, a recalculation
presents a consistent result with others. Finally, our results show that the
kinetic freeze-out temperature in central collisions is larger than that in
peripheral collisions.

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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: physics
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The categories of this paper are: cs
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The categories of this paper are: stat
28
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: hep-lat
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc