Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Energy and centrality dependence of chemical freeze-out parameters from
  models   One of the main goals of heavy-ion collision experiments is to study the
structure of the QCD phase diagram. The QCD phase diagram is typically plotted
as temperature ($T$) vs. baryon chemical potential ($\mu_{B}$). The statistical
thermal model THERMUS compared to experimental data provides chemical
freeze-out parameters such as temperature, baryon chemical potential and
strangeness saturation factor ($\gamma_{s}$). However, the values of these
parameters depend on models and their underlying assumptions, such as the
nature of the ensemble used, particle ratios vs. particle yields, and the
treatment of feed-down contributions to particle yields. In these proceedings,
we report on a systematic study of chemical freeze-out parameters using
THERMUS, as a function of collision centrality and collision energies
($\sqrt{s_{NN}} =7.7-200$ GeV). These studies are performed with the string
melting version of A Multi-Phase Transport (AMPT) model. A comparison is
presented of freeze-out parameters between grand-canonical vs. strangeness
canonical ensembles, particle yields vs. ratios, with and without feed-down
contributions to the particle yields. The main aim is to evaluate the
sensitivity of the thermal model fits to various model assumptions. This is an
important study for understanding corresponding experimental results from the
beam energy scan program at RHIC.

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The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
29
The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
28
The categories of this paper are: alg-geom