Event-by-Event Observables and Fluctuations

Abstract

In this talk the status and open questions of the phenomenological description of all the stages of a heavy ion reaction are highlighted. Special emphasis is put on event-by-event fluctuations and associated observables. The first part is concentrated on high RHIC and LHC energies and the second part reviews the challenges for modeling heavy ion reactions at lower beam energies in a more realistic fashion. Overall, the main conclusion is that sophisticated theoretical dynamical approaches that describe many observables in the same framework are essential for the quantitative understanding of the properties of hot and dense nuclear matter.

8 pages, 10 figures, accepted contribution to the Proceedings for Quark Matter 2012, Washington DC, August 2012

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• Holography and colliding gravitational shock waves in asymptotically AdS_5 spacetime
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• Effects of initial flow velocity fluctuation in event-by-event (3+1)D hydrodynamics
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• Turbulent thermalization of weakly coupled non-abelian plasmas
• Charge conservation and the shape of the ridge of two-particle correlations in relativistic heavy-ion collisions
• The Effect of Dynamical Parton Recombination on Event-by-Event Observables
• Relativistic Hydrodynamics on Graphic Cards