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

Chun Shen (1) , Gabriel Denicol (2) , Charles Gale (3) , Sangyong Jeon (3) , Akihiko Monnai (4) , Bjoern Schenke (1)

1 BNL - Brookhaven National Laboratory [Upton, NY]
2 UFF - Universidade Federal Fluminense [Rio de Janeiro]
3 McGill University = Université McGill [Montréal, Canada]
4 IPHT - Institut de Physique Théorique - UMR CNRS 3681

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.

Mots clés: net baryon diffusion; viscous hydrodynamics; hadronic transport; dynamical initialization

Domaines: Physique Nucléaire Théorique [nucl-th]; Physique Nucléaire Expérimentale [nucl-ex]

Chun Shen, Gabriel Denicol, Charles Gale, Sangyong Jeon, Akihiko Monnai, et al.. A hybrid approach to relativistic heavy-ion collisions at the RHIC BES energies. Nuclear Physics A, 2017, 967, pp.796-799. ⟨10.1016/j.nuclphysa.2017.06.008⟩. ⟨cea-01566491⟩