Speakers
Salvatore Plumari
(University of Catania (Italy))
Vincenzo Greco
(University of Catania)
Description
We discuss the build up of elliptic flow and high order harmonics $v_n$ within a transport
approach at fixed shear viscosity to entropy density ratio and with initial state fluctuations.
We show, exploring the $T$ dependence of $\eta/s$, that a study of $v_n$ in a wide $p_T$ range
allows to understand the difference behind the collective flows at LHC respect to RHIC. Furthermore
we present novel results about the impact of $\eta/s$ on the correlations between the initial
space eccentricity $\epsilon_n$ and the final anisotropic flows $v_n$.
In particular we study the effect of a temperature dependent $\eta/s$ at different beam energies
from RHIC for $Au+Au$ at $\sqrt{s}= 62.4, 200$ GeV to LHC energies for $Pb+Pb$ at $\sqrt{s}= 2.76$ TeV.
We find that for the different beam energies considered the suppression of the elliptic flow
due to the viscosity of the medium has different contaminations coming from the hadronic or
QGP phase depending on the average energy of the system.
References
[1] S. Plumari, V. Greco and L.P. Csernai, arXiv:1304.6566 [nucl-th].
[2] M. Ruggieri, F. Scardina, S. Plumari and V. Greco, Phys.Lett. B727 (2013) 177-181.
[3] S. Plumari, A. Puglisi, F. Scardina and V. Greco, Phys.Rev. C86 (2012) 054902.
Primary authors
Salvatore Plumari
(University of Catania (Italy))
Vincenzo Greco
(University of Catania)
Co-authors
Mr
Armando Puglisi
(University of Catania, Italy)
Mr
Luca Guardo
(University of Catania, Italy)
francesco scardina
(INFN Catania)
