Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Schwerionenkollisionen und QCD Phasen
HK 4.2: Vortrag
Montag, 17. März 2014, 14:30–14:45, HZ 6
Azimuthal Jet Tomography at RHIC and LHC — •Barbara Betz1 and Miklos Gyulassy2 — 1Johann Wolfgang Goethe-University, Frankfurt am Main, Germany — 2Columbia University, New York, USA
Recent data on the azimuthal and transverse momentum dependence of high-pT pion nuclear modification factors and high-pT elliptic flow in nuclear collisions at RHIC and LHC are analyzed in terms of a wide class of jet-energy loss models, ranging from running coupling pQCD based prescriptions to AdS/CFT-inspired models, coupled to state of the art (2+1)-dimensional viscous hydrodynamic fields. RHIC data are found to be surprisingly consistent with most models, but with parameters fixed at RHIC, extrapolations to LHC energies favor only running coupling QCD based energy-loss models, while conformal AdS holography models are inconsistent with the measured data. However, recent non-conformal generalizations of AdS holography may provide an alternative description.