Conveners
Approach to equilibrium
- Urs Wiedemann (CERN)
Thomas Epelbaum
(IPhT)
19/05/2014, 14:20
Approach to Equilibrium
Contributed Talk
In recent years, the problem of thermalization in Heavy Ion Collision has received much attention, but has yet to be solved.
The issue is the following: on one hand, viscous hydrodynamics simulations suggest that the matter produced in such collisions (called the Quark Gluon Plasma, or QGP) behaves like a nearly perfect fluid, and does so very shortly after the collision (around 1 fm/c)....
Wojciech Florkowski
(Institute of nuclear Physics, Krakow)
19/05/2014, 14:40
Approach to Equilibrium
Contributed Talk
A set of kinetic equations is used to study equilibration of the anisotropic quark-gluon plasma produced by decays of color flux tubes possibly created at the very early stages of ultra-relativistic heavy-ion collisions. The decay rates of the initial color fields are given by the Schwinger formula, and the collision terms are treated in the relaxation-time approximation. By connecting the...
Dr
Sören Schlichting
(Brookhaven National Lab)
19/05/2014, 15:00
Approach to Equilibrium
Contributed Talk
When and to what extent a thermalized Quark Gluon Plasma is achieved in heavy-ion collision impacts the quantitative extraction of transport properties in the QGP. We address this problem by employing the largest to date real time classical-statistical lattice simulations. Most remarkably, we find that the thermalization process is governed by a universal attractor, where the space-time...
Tuomas Lappi
(University of Jyvaskyla)
19/05/2014, 15:20
Approach to Equilibrium
Contributed Talk
The initial stage of a heavy ion collision is dominated by nonperturbatively strong chromoelectric and -magnetic fields. The properties of these fields can be calculated numerically using the CGC description of the small x degrees of freedom of the colliding nuclei. The spatial Wilson loop provides a gauge invariant observable to probe the dynamics of the longitudinal chromomagnetic field....
Jinfeng Liao
(Indiana University)
19/05/2014, 15:40
Approach to Equilibrium
Contributed Talk
To understand the evolution of a dense system of gluons, such as those produced in the early stages of ultra-relativistic heavy ion collisions, is an important and challenging problem. We describe the approach to thermal equilibrium using the small angle approximation for gluon scattering in a Boltzmann equation that includes the effects of Bose statistics. The role of Bose statistical factors...
