Speaker
Dr
francesco scardina
(INFN Catania)
Description
A current goal of relativistic heavy ion collisions experiments
is the search for a Color Glass Condensate as the limiting state of QCD matter at very high density.
In viscous hydrodynamics simulations, a standard Glauber initial condition leads to estimate $4\pi \eta/s \sim 1$, while
a Color Glass Condensate modeling leads to at least a factor of 2 larger $\eta/s$.
Within a kinetic theory approach based on a relativistic Boltzmann-like transport simulation,
we point out that the out-of-equilibrium initial distribution proper of a Color Glass Condensate
reduces the efficiency in building-up the elliptic flow. We study the dynamical impact of Color Glass Condensate at both RHIC and LHC energies.
Our main result at RHIC energy is that the available data on $v_2$
are in agreement with a $4\pi \eta/s \sim 1$ also for Color Glass Condensate initial conditions,
opening the possibility to describe self-consistently also higher order flow, otherwise significantly underestimated,
and to pursue further the search for signatures of the Color Glass Condensate.
[1] M. Ruggieri, F. Scardina, S. Plumari, V. Greco, arXiv:1303.3178 [nucl-th].
[2] S. Plumari, V. Baran , M. Di Toro, G. Ferini, V. Greco, Phys.Lett. B689 (2010) 18-22.
Primary author
Dr
francesco scardina
(INFN Catania)
Co-authors
Dr
Marco Ruggieri
(University of Catania)
Dr
Salvatore Plumari
(University of Catania)
Prof.
Vincenzo Greco
(University of Catania)
