Conveners
Initial State Physics and Approach to Equilibrium II
- Federico Antinori (Universita e INFN, Padova (IT))
Dr
Takafumi Niida
(Wayne State University)
9/28/15, 5:00 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
At the early stages of non-central heavy-ion collisions, a strong magnetic field perpendicular to the reaction plane is created. In asymmetric Cu+Au collisions, due to the difference in the number of spectators, not only the magnetic field but also a strong electric field (E-field) would be created along the reaction plane and pointing from the Au-nucleus to Cu-nucleus. The lifetime of the...
Brennan Schaefer
(Vanderbilt University)
9/28/15, 5:20 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
Asymmetric collisions of large nuclei at high energy offer a unique
window into many aspects of excited medium formation and evolution.
Unlike symmetric collisions, an asymmetric system can have non-zero
odd-order moments in its average transverse distribution of
participants, and the pattern of participants from the two nuclei
can have different shapes on average. In 2012, PHENIX...
Ulrich Heinz
(The Ohio State University)
9/28/15, 5:40 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
In order to bracket the importance of the pre-equilibrium stage on relativistic heavy-ion collision observables at RHIC and LHC energies, we compare simulations in which the pre-equilibrium stage is modeled by free-streaming partons with others where it is modeled fluid dynamically. The first (second) case implements the assumption of extremely weak (strong) coupling in the initial collision...
Prof.
Joseph Kapusta
(University of Minnesota)
9/28/15, 6:00 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
Nuclei colliding at very high energy create a strong, quasi-classical gluon field during the initial phase of their interaction. We present an analytic calculation of the initial space-time evolution of this field in the limit of very high energies using a formal recursive solution of the Yang-Mills equations. We provide analytic expressions for the initial chromo-electric and chromo-magnetic...
Dr
Edmond Iancu
(IPhT Saclay)
9/28/15, 6:20 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
The Color Glass Condensate effective theory is the perturbative QCD description of the initial state for proton-nucleus and nucleus-nucleus collisions at RHIC and the LHC. The BK-JIMWLK equations describing the evolution of this theory with increasing energy have recently been extended to next-to-leading order (NLO) accuracy, which should allow for direct comparisons with the phenomenology. ...
Dr
Jean-Paul Blaizot
(CEA)
9/28/15, 6:40 PM
Initial State Physics and Approach to Equilibrium
Contributed talk
To understand the approach to equilibrium of a dense system of gluons, such as those produced in the early stages of ultra-relativistic heavy ion collisions, is an outstanding challenge. We study this problem by solving the relevant kinetic equations, including the proper Bose statistics, and using simple approximations that allow for semi-analytic solutions. Both elastic processes and number...
