Conveners
Dynamics and the Equation of State (2/2)
- Wojciech Florkowski (IFJ PAN Krakow / UJK Kielce)
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Prof. Ulrich Heinz (The Ohio State University)15/10/2009, 09:00Investigating Dynamics and the EOS with CorrelationsTalkAzimuthally 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...Go to contribution page
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Pasi Huovinen (Johann Wolfgang Goethe-Universität)15/10/2009, 09:30Investigating Dynamics and the EOS with CorrelationsTalkAt 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...Go to contribution page
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Dariusz Miskowiec (Gesellschaft fuer Schwerionenforschung mbH (GSI))15/10/2009, 10:00Investigating Dynamics and the EOS with CorrelationsTalkFinite 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.Go to contribution page
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Constantinos Loizides (Massachusetts Institute of Technology (MIT))15/10/2009, 10:50New Results from SPS and RHICTalkWe 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...Go to contribution page
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Y. Hama (Instituto de Fisica - USP)15/10/2009, 11:20Investigating Dynamics and the EOS with CorrelationsTalkIn 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...Go to contribution page
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Piotr Bozek (Institute of Nuclear Physics PAN, Krakow and Rzeszow University, Poland)15/10/2009, 11:50Investigating Dynamics and the EOS with CorrelationsTalkReduction 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...Go to contribution page
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Dr Grigory Feofilov (V. Fock Institute for Physics of Saint-Petersburg State University)15/10/2009, 12:20Investigating Dynamics and the EOS with CorrelationsTalkIn 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...Go to contribution page