Event-by-event generation of vorticity in heavy-ion collisions

16th International Conference on Strangeness in Quark Matter

Deng, Wei-Tian^1 ; Huang, Xu-Guang^2,3

School of Physics, Huazhong University of Science and Technology, Wuhan

430074, China^1

Physics Department, Center for Particle Physics and Field Theory, Fudan University, Shanghai

200433, China^2

Department of Physics, Brookhaven National Laboratory, Upton

NY

11973-5000, United States^3

关键词: Beam energies;    Flow vorticity;    Fluid shear;    Heavy ion collision;    Quark-gluon;    Reaction plane;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/779/1/012070/pdf
DOI  :  10.1088/1742-6596/779/1/012070

来源: IOP

【 摘 要 】

In a noncentral heavy-ion collision, the two colliding nuclei have a finite angular momentum in the direction perpendicular to the reaction plane. After the collision, a fraction of the total angular momentum is retained in the produced hot quark-gluon matter and is manifested in the form of fluid shear. Such fluid shear creates finite flow vorticity. We study some features of such generated vorticity, including its strength, beam energy dependence, centrality dependence, and spatial distribution.