Shear viscous transport dynamics simulations of parton matter in AMPT model

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.