Studying the Perfect Fluid

A simulated collision of lead ions, courtesy the ALICE experiment at CERN
A simulated collision of lead ions, courtesy the ALICE experiment at CERN – See more at: http://newscenter.lbl.gov/2010/11/04/lhc-lead/#sthash.yxm9loVb.dpuf

Within five different approaches to parton propagation and energy loss in dense matter, a phenomenological study of experimental data on suppression of large-pT single inclusive hadrons in heavy-ion collisions at both the BNL Relativistic Heavy Ion Collider (RHIC) and the CERN Large Hadron Collider (LHC) was carried out. The evolution of bulk medium used in the study for parton propagation was given by 2 + 1 dimensional or 3 + 1 dimensional hydrodynamic models which are also constrained by experimental data on bulk hadron spectra. Values for the jet transport parameter qˆ at the center of the most central heavy-ion collisions are extracted or calculated within each model, with parameters for the medium properties that are constrained by experimental data on the hadron suppression factor  See: Extracting the jet transport coefficient from jet quenching in high-energy heavy-ion collisions

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