Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 78: Plenary IX

HK 78.1: Eingeladener Hauptvortrag

Freitag, 20. März 2009, 09:00–09:30, Audi-Max

The Strongly Coupled Quark Gluon Plasma Produced at RHIC (exchanged with HK 2.1) — •Axel Drees — Stony Brook University, Stony Brook, New York

Matter created in collisions of heavy ion at high energy is opaque, strongly interacting and surprisingly close to a perfect fluid. Data has now been accumulated for almost a decade of experiments at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL) and the conclusions emerge more and more clearly: (i)initial energy densities reached in the collisions are at least 10 to 100 times nuclear matter density, (ii) the matter created is opaque to probes with color charge, even to heavy flavor, (iii) the matter behaves collectively very much like a fluid with minimal viscosity. In my talk I will review the relevant experimental observations and discuss their consequences.