Conveners
Global and collective dynamics
- Johannes Wessels (Institut fuer Kernphysik - Westfaelische Wilhelms-Universitaet M)
Sangyong Jeon
(McGill University)
27/05/2011, 17:30
Global and collective dynamics
Parallel
I will present results for elliptic and triangular flow coefficients
v2 and v3 in Au+Au collisions at
sqrt(s) = 200A GeV using event-by-event 3+1D viscous hydrodynamic simulations. I will report on the effect of initial state fluctuations and finite viscosities on the flow coefficients v2 and v3 as functions of transverse momentum and pseudo-rapidity.
I will argue that simultaneous...
Alexandru Florin Dobrin
(Wayne State University)
27/05/2011, 17:50
Global and collective dynamics
Parallel
As a consequence of the energy loss of highly energetic parton propagating through a dense medium, jet quenching is an important probe of QGP created in high energy heavy-ion collisions. Jet quenching leads to the suppression of particle production at high transverse momenta. An observable that can be used to better constrain the mechanism responsible for the parton energy loss is the elliptic...
Dr
Stefan Floerchinger
(CERN)
27/05/2011, 18:10
Global and collective dynamics
Parallel
For large Reynolds number (which is inverse to viscosity), fluids are known to develop turbulence. Therefore, the phenomenological evidence for a small viscosity suggests that the hydrodynamical description of heavy ion collisions may have a turbulent regime. Assuming that averaged velocities are described by Bjorkens model, we investigate local fluctuations around it. These perturbations are...
Dr
Clément Gombeaud
(University of Bielefeld), Prof.
Nicolas Borghini
(University of Bielefeld)
27/05/2011, 18:30
Global and collective dynamics
Parallel
Novel analytical results for the anisotropic collective flow of massive particles with a small interaction cross-section are presented. In particular, we show that, even when particles rescatter at most once, a sizable elliptic flow $v_2$ is generated, with mass ordering of the various particle species.
Denes Molnar
(Purdue University)
27/05/2011, 18:50
Global and collective dynamics
Parallel
Much of our understanding of the collision dynamics at RHIC and LHC relies
on contrasting hydrodynamic or hydro+transport calculations with
experimental data. For example, early evidence for rapid thermalization
and quark-gluon plasma phase transition at RHIC came from particle spectra
and the pion-proton splitting of differential elliptic flow. An inevitable
component in these...
Dr
Chiara Oppedisano
(INFN, Sezione di Torino)
27/05/2011, 19:10
Global and collective dynamics
Parallel
Electromagnetic dissociation of heavy nuclei in ultra-peripheral interactions at high energies can be used to monitor the beam luminosity at colliders.
Neutrons emitted by the excited nuclei close to beam rapidity are detected by the ALICE Zero Degree Calorimeters (ZDC) with full acceptance, providing a precise measurement of the event rate.
During the 2010 Pb-Pb run, a dedicated data...
