We provide a concise review on recent theory advancements towards full-fledged(3+1)D dynamical descriptions of relativistic nuclear collisions at finite baryon density.Heavy-ion collisions at different collision energ...We provide a concise review on recent theory advancements towards full-fledged(3+1)D dynamical descriptions of relativistic nuclear collisions at finite baryon density.Heavy-ion collisions at different collision energies produce strongly coupled matter and probe the QCD phase transition at the crossover,critical point,and first-order phase transition regions.Dynamical frameworks provide a quantitative tool to extract properties of hot QCD matter and map fireballs to the QCD phase diagram.Outstanding challenges are highlighted when confronting current theoretical frameworks with current and forthcoming experimental measurements from the RHIC beam energy scan programs.展开更多
We explore the Kibble-Zurek scaling of conserved charge using stochastic diffusion dynamics. The characteristic scales τKZ and lKZ are determined and used to properly rescale the traditional correlation function and ...We explore the Kibble-Zurek scaling of conserved charge using stochastic diffusion dynamics. The characteristic scales τKZ and lKZ are determined and used to properly rescale the traditional correlation function and cumulant. We construct universal functions for the two-point correlation C(y1-y2;τ)and the second-order cumulant K(△y,τ) of the conserved charge in the critical regime, both of which are, near the critical point, insensitive to both the initial temperature and a parameter in the mapping between the 3D Ising model and the hot QCD system.展开更多
基金he National Natural Science Foundation of China(Grant Nos.12075007,11675004,11947236,and PHY-2012922)the China Postdoctoral Science Foundation(Grant No.2020M680184)+2 种基金the U.S.Department of Energy(Grant No.DE-SC0013460)the U.S.Department of EnergyOffice of Science,Office of Nuclear Physics,within the framework of the Beam Energy Scan Theory(BEST)Topical Collaboration。
文摘We provide a concise review on recent theory advancements towards full-fledged(3+1)D dynamical descriptions of relativistic nuclear collisions at finite baryon density.Heavy-ion collisions at different collision energies produce strongly coupled matter and probe the QCD phase transition at the crossover,critical point,and first-order phase transition regions.Dynamical frameworks provide a quantitative tool to extract properties of hot QCD matter and map fireballs to the QCD phase diagram.Outstanding challenges are highlighted when confronting current theoretical frameworks with current and forthcoming experimental measurements from the RHIC beam energy scan programs.
基金Supported by the NSFC and the MOST(11675004,11435001,2015CB856900)
文摘We explore the Kibble-Zurek scaling of conserved charge using stochastic diffusion dynamics. The characteristic scales τKZ and lKZ are determined and used to properly rescale the traditional correlation function and cumulant. We construct universal functions for the two-point correlation C(y1-y2;τ)and the second-order cumulant K(△y,τ) of the conserved charge in the critical regime, both of which are, near the critical point, insensitive to both the initial temperature and a parameter in the mapping between the 3D Ising model and the hot QCD system.
