A hybrid approach to relativistic heavy-ion collisions at the RHIC BES energies

作者：Shen Chun^*; Denicol Gabriel; Gale Charles; Jeon Sangyong; Monnai Akihiko; Schenke Bjoern

来源：Nuclear Physics A, 2017, 967: 796-799.

DOI：10.1016/j.nuclphysa.2017.06.008

• net baryon diffusion
• viscous hydrodynamics
• hadronic transport
• dynamical initialization

Using a hybrid (viscous hydrodynamics + hadronic cascade) framework, we model the bulk dynamical evolution of relativistic heavy-ion collisions at Relativistic Heavy Ion Collider (RHIC) Beam Energy Scan (BES) collision energies, including the effects from non-zero net baryon current and its dissipative diffusion. This framework is in full (3+1)D, which allows us to study the non-trivial longitudinal structure and dynamics of the collision systems, for example baryon stopping and transport, as well as longitudinal fluctuations. For the first time, the quantitative effect of net baryon diffusion on hadronic observables is addressed. Finally, we propose a dynamical initialization scheme to study the importance of the pre-equilibrium stage at the RHIC BES energies.

• 出版日期2017-11
• 单位McGill; 中国地震局