Fig. 10. Global polarization difference between Λ and its antiparticle under different magnetic field lifetimes as a function of collision energy[58] (a), comparison between the AMPT model simulation and the STAR experiment of global polarization[53] (b)
Fig. 11. Rapidity-azimuth distribution of the local spin polarization of and for Au+Au collisions at 20%~50% centrality range at 19.6 GeV and 200 GeV, respectively[59]