Conveners
Dynamics and the Equation of State (2/2)
- Wojciech Florkowski (IFJ PAN Krakow / UJK Kielce)
Prof.
Ulrich Heinz
(The Ohio State University)
10/15/09, 9:00 AM
Investigating Dynamics and the EOS with Correlations
Talk
Azimuthally sensitive HBT interferometry can complement
elliptic flow measurements by constraining the spatial deformation
of the source and its time evolution. Performing these measurements on
photons allows us to access the fireball evolution at earlier times than
with hadrons. Using ideal hydrodynamics to model the space-time
evolution of the collision fireball, we explore...
Pasi Huovinen
(Johann Wolfgang Goethe-Universität)
10/15/09, 9:30 AM
Investigating Dynamics and the EOS with Correlations
Talk
At low temperatures the hadron resonance gas model is expected to give a fair description of thermodynamic quantities even if the lattice QCD calculation leads to significantly different result. In this talk I
show that he discrepancies are significantly reduced if we take into account the larger values of quark mass, i.e. larger hadron masses, used in lattice calculations as well as the...
Dariusz Miskowiec
(Gesellschaft fuer Schwerionenforschung mbH (GSI))
10/15/09, 10:00 AM
Investigating Dynamics and the EOS with Correlations
Talk
Finite viscosity affects the evolution of the fireball created
in energetic nuclear collisions. A recent attempt of the CERES
experiment to extract viscosity from pion source radii in
central lead-gold collisions at the CERN SPS will be presented.
The unexpected result, the limitations of the method, and the
possible ways out will be discussed.
Constantinos Loizides
(Massachusetts Institute of Technology (MIT))
10/15/09, 10:50 AM
New Results from SPS and RHIC
Talk
We present the latest results of the determination of the contribution of non-flow effects to the elliptic flow fluctuations in 200 GeV Au+Au collisions, measured by PHOBOS. In a hydrodynamical scenario, fluctuations in the shape of the initial collision region naturally lead to corresponding fluctuations in the elliptic flow signal. Measurements of elliptic flow fluctuations should...
Y. Hama
(Instituto de Fisica - USP)
10/15/09, 11:20 AM
Investigating Dynamics and the EOS with Correlations
Talk
In a recent paper [1], the hydrodynamic code NeXSPheRIO was used in conjunction with
STAR analysis methods to study two-particle correlations as function of \Delta\eta and
\Delta\phi. Both the ridge-like near-side and double-hump away-side structures were obtained.
The appearance of the ridge-like structure is related to the combined effect of high-energy
density tubes in the initial...
Piotr Bozek
(Institute of Nuclear Physics PAN, Krakow and Rzeszow University, Poland)
10/15/09, 11:50 AM
Investigating Dynamics and the EOS with Correlations
Talk
Reduction of the elliptic flow of charged particles
has been proposed as a measure of the shear viscosity coefficient
in the Quark Gluon Plasma. We complete these studies by introducing
independent shear and bulk viscosities in the hadronic phase of the
hydrodynamic expansion. We show that most of the effect of the reduction of
elliptic flow due to dissipation comes from the hadronic...
Dr
Grigory Feofilov
(V. Fock Institute for Physics of Saint-Petersburg State University)
10/15/09, 12:20 PM
Investigating Dynamics and the EOS with Correlations
Talk
In pp collisions at the LHC, collective effects due to colour-string interactions (screening/annealing/fusion/percolation are the mechanisms proposed by different models) could take place, resulting in the appearance of the so-called long-range correlations. In the present work long-range correlations are studied in an event-by-event charged particle analysis, performed on MC PYTHIA...
