Net-baryon diffusion in fluid-dynamic simulations of relativistic heavy-ion collisions

A hybrid (hydrodynamics + hadronic transport) theoretical framework is assembled to model the bulk dynamics of relativistic heavy-ion collisions at energies accessible in the Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC) and the NA61/SHINE experiment at CERN. The syste...

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Published in:Physical review. C 2018-09, Vol.98 (3), Article 034916
Main Authors: Denicol, Gabriel S., Gale, Charles, Jeon, Sangyong, Monnai, Akihiko, Schenke, Björn, Shen, Chun
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Language:English
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NUCLEAR PHYSICS AND RADIATION PHYSICS
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description A hybrid (hydrodynamics + hadronic transport) theoretical framework is assembled to model the bulk dynamics of relativistic heavy-ion collisions at energies accessible in the Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC) and the NA61/SHINE experiment at CERN. The system's energy-momentum tensor and net baryon current are evolved according to relativistic hydrodynamics with finite shear viscosity and non-zero net baryon diffusion. Our hydrodynamic description is matched to a hadronic transport model in the dilute region. With this fully integrated theoretical framework, we present a pilot study of the hadronic chemistry, particle spectra, and anisotropic flow. Phenomenological effects of a non-zero net-baryon current and its diffusion on hadronic observables are presented for the first time. Furthermore, the importance of the hadronic transport phase is also investigated.
doi_str_mv 10.1103/PhysRevC.98.034916
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title Net-baryon diffusion in fluid-dynamic simulations of relativistic heavy-ion collisions
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