https://doi.org/10.1140/epja/s10050-023-01218-x
Regular Article - Theoretical Physics
Shear viscous transport dynamics simulations of parton matter in AMPT model
School of Energy and Mechanical Engineering, Jiangxi University of Science and Technology, 330013, Nanchang, China
Received:
30
September
2023
Accepted:
9
December
2023
Published online:
18
December
2023
We use the AMPT model to simulate the shear viscous transport dynamics of parton matter for Pb + Pb collisions at 2760A GeV. The shear viscosity to entropy density ratio is parameterized as a function of temperature and the partonic phase temperature is calculated by the Gaussian smearing approximation of the parton energy density. The results of particle spectra and elliptic flow are compared with experimental data and show a reasonable agreement. The elliptic flow is found to be more sensitive to the shear viscosity than the particle spectra and more influenced by the temperature-dependent shear viscosity than the constant ratio at large transverse momentum and midrapidity regions. The final observables are influenced by the partonic system evolution process, which is reflected by the effect of temperature-dependent shear viscosity.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
