Heavy Ion Forum on Flow

Friday 23 Jan 2015, 10:00 → 12:00 Europe/Zurich

4/3-006 - TH Conference Room (CERN)

Urs Wiedemann (CERN), Yiota Foka (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE))

“Global Collective Flow in Heavy Ion Reactions”, Laszlo Csernai "Fluid dynamic perturbations in heavy ion collisions”, Stefan Floerchinger (CERN PH-TH) "Anisotropic flow studies from ALICE", Michael Weber (CERN)

10:00 → 10:40 Global Collective Flow in Heavy Ion Reactions

Heavy ion reactions recently are analyzed for fluctuations, which are clearly the dominant sources of azimuthal flow asymmetries in central collisions. In peripheral collisions on the other hand there are azimuthal asymmetries arising from the finite impact parameter and the consequently large angular momentum of the participant system. Experimental results clearly indicate the existence of these two mechanisms in the flow patterns. The talk will discuss how to separate and analyze these two types of flow patterns in peripheral collisions.

Speaker: Laszlo Csernai (Department of Physics and Technology)

Slides 1-Csernai-CERN_Global_Collective_Flow.pdf

10:40 → 11:20 Fluid dynamic perturbations in heavy ion collisions

The dynamical evolution of perturbations in the fluid dynamics of heavy ion collisions gives access to the initial "primordial" state after a heavy ion collision, the strong dynamics that drives thermalization and the thermodynamic and transport properties of QCD. I discuss progress on our understanding of initial conditions for density perturbations and their propagation. I also discuss baryon number fluctuations and how their dynamics is determined by heat conductivity.

Speaker: Dr Stefan Floerchinger (CERN)

Slides FloerchingerHIF2015.pdf

11:20 → 12:00 Anisotropic flow studies from ALICE

Two- and multi-particle angular correlations are a sensitive probe of the transport properties of the system produced in heavy-ion collisions and allow us to constrain the dynamics of these collisions. In this talk, we will review the results on charged and identified particle correlations obtained from the analysis of RUN-I data recorded with the ALICE detector.

Speaker: Michael Weber (CERN)

Slides HIF_MW_20150123_v3.pdf