Speaker
Mr
Baochi Fu
(Peking University)
Description
In this model, as a physical dynamic approach, AMPT is used to generate initial energy, velocity and net baryon density profile as the initial condition of hydrodynamics. The initial flow plays an important role especially at BES energies, where we find harder transverse momentum spectra of final particles.
Based on this model, we also investigated the global and local structure of $\Lambda$ polarization at hydrodynamic freeze-out hyper surface. It could reproduce the global polarization trends and the similar circular structure at finite rapidity region as the pure transport model. We also predict $\Lambda$ polarization as a function of centrality, transverse momentum, rapidity and azimuthal angle at different energies.
Summary
Using the 3+1-d hybrid model (AMPT + MUSIC + UrQMD), we present systematic studies of $\pi$ /K /p transverse momentum spectra, elliptic flow and $\Lambda$ hyperon polarization for Au-Au collisions at 7.7 – 200 GeV.
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Primary author
Mr
Baochi Fu
(Peking University)
Co-authors
Prof.
Huichao Song
(Peking University)
Xu-Guang Huang
(Fudan University)
