Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entropy per rapidity in Pb-Pb central collisions using Thermal and
  Artificial neural network(ANN) models at LHC energies   The entropy per rapidity $d S/d y$ produced in central Pb-Pb
ultra-relativistic nuclear collisions at LHC energies is calculated using
experimentally observed identified particle spectra and source radii estimated
from Hanbury Brown-Twiss (HBT) for particles, $\pi$, $k$, $p$, $\Lambda$,
$\Omega$, and $\bar{\Sigma}$, and $\pi$, $k$, $p$, $\Lambda$ and $K_s^0$ at $
\sqrt{s}$ $=2.76$ and $5.02$ TeV, respectively. Artificial neural network (ANN)
simulation model is used to estimate the entropy per rapidity $d S/d y$ at the
considered energies. The simulation results are compared with equivalent
experimental data, and good agreement is achieved. A mathematical equation
describes experimental data is obtained. Extrapolating the transverse momentum
spectra at $p_T$ $=0$ is required to calculate $d S/d y$ thus we use two
different fitting functions, Tsallis distribution and the Hadron Resonance Gas
(HRG) model. The success of ANN model to describe the experimental measurements
will imply further prediction for the entropy per rapidity in the absence of
the experiment.

28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex
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The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex