Jet-quenching in a 3D hydrodynamic medium

Abstract

We study the radiative energy loss of hard partons in a soft medium in the multiple soft scattering approximation. The soft medium is described by a 3D hydrodynamical model and we treat the averaging over all possible parton paths through the medium without approximation. While the nuclear suppression factor $R_{AA}$ does not reflect the high quality of the medium description (except in a reduced systematic uncertainty in extracting the quenching power of the medium), the hydrodynamical model also allows to study different centralities and in particular the angular variation of $R_{AA}$ with respect to the reaction plane, allowing for a controlled variation of the in-medium path-length. We study the angular dependence of $R_{AA}$ for different centralities, discuss the influence of hydrodynamical expansion and flow and comment on the comparison with preliminary data.

5 pages, 6 figures, revised version with minor modifications

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• RHIC and LHC jet suppression in non-central collisions
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• Three-particle azimuthal correlations and Mach shocks
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• Event-by-event azimuthal anisotropy of jet quenching in relativistic heavy ion collisions
• (medium-modified) Fragmentation Functions
• Jet Propagation and Mach Cones in (3+1)d Ideal Hydrodynamics
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• Jet quenching in anisotropic flowing matter
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• Towards tomography of quark-gluon plasma using double inclusive forward-central jets in Pb-Pb collision
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• The Nuclear Suppression Factor for P_T increasing towards the Kinematic Limit
• Comparing parton energy loss models
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