Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constraining input parameters of AMPT model with $\phi$ meson production   A Multi-Phase Transport Model (AMPT) has been extensively used to understand
the physics behind the experimental observation. Like other models, the outcome
of the AMPT model depends on the initial parameters. Therefore, one needs to
choose suitable initial parameters before using the model. Lund string
fragmentation function has been used to create quark-antiquarks pairs in the
AMPT model. The Lund string fragmentation parameters determine the yields and
transverse momentum ($p_{T}$) spectra of particles produced in nucleus-nucleus
collisions. The values of Lund string fragmentation parameters were determined
by fitting the charged particle yield and $p_{T}$ spectra measured in the
experiment. In this paper, we have shown the yield of strange quarks carrying
hadrons, e.g. $\phi$ mesons, are more sensitive to Lund string fragmentation
parameters compared to non-strange pions. Using $\phi$ meson spectra measured
at RHIC, we have obtained new sets of Lund parameters for Au+Au collisions at
$\sqrt{s_{\mathrm {NN}}}$ = 11.5, 39, and 200 GeV. We have found that using the
same set of parameters, we can explain $\phi$-meson yield at $\sqrt{s_{\mathrm
{NN}}}$ = 39 and 200 GeV, however, we need a different set of parameters for
$\sqrt{s_{\mathrm {NN}}}$ = 11.5 GeV. This suggests that at low energy,
$\sqrt{s_{\mathrm {NN}}}$ = 11.5 GeV, the underlying mechanism for particle
production is different compared to top RHIC energies. We have also predicted
invariant yield of $\pi$ and $\phi$ mesons as a function of $p_{T}$ in U+U
collisions at $\sqrt{s_{\mathrm {NN}}}$ = 196 GeV to be measured by STAR
experiment.

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The categories of this paper are: gr-qc
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
15
The categories of this paper are: nucl-ex
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
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The categories of this paper are: physics
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: math
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th