Speaker
Sangwook Ryu
(McGill University)
Description
This work presents a comprehensive description of hadronic observables in heavy-ion collisions at RHIC and LHC energies
using a hybrid model that combines IP-Glasma initial conditions, full second-order viscous hydrodynamics (MUSIC)
with both the shear and bulk viscosities, and a hadronic afterburner (UrQMD) [1].
In this hybrid approach, it is found that the temperature-dependent bulk viscosity plays a crucial role
in simultaneously describing the multiplicity, mean $p_T$ and the integrated $v_n$ of all identified particles.
Importantly, the extraction of the shear viscosity of QGP very much depends on the bulk viscosity
resulting in smaller value of the shear viscosity.
These calculations are also in good agreement with HBT measurements.
Finally, it will be shown that a hybrid approach is critical
in describing identified particle $p_T$-spectra and the $v_n$ including baryons and multi-strange hadrons.
The afterburner is also found to be important in describing the angular correlations.
[1] S. Ryu, J.-F. Paquet, C. Shen, G. S. Denicol, B. Schenke, S. Jeon and C. Gale, arXiv:1502.01675 [nucl-th].
| On behalf of collaboration: | NONE |
|---|
Author
Sangwook Ryu
(McGill University)
Co-authors
Bjoern Schenke
(Brookhaven National Lab)
Prof.
Charles Gale
(McGill University)
Chun Shen
(McGill University)
Gabriel Denicol
(McGill University)
Jean-Francois Paquet
(McGill University)
Sangyong Jeon
(McGill University)
