PHYSICAL REVIEW C 79, (2009)‏ Systematic comparison of jet energy-loss schemes in a realistic hydrodynamic medium Steffen A. Bass,1 Charles Gale,2 Abhijit Majumder,1 Chiho Nonaka,3 Guang-You Qin,2 Thorsten Renk,4,5 and J¨org Ruppert2 1Department of Physics, Duke University, Durham, North Carolina 27708, USA 2Department of Physics, McGill University, H3A 2T8, Montreal, Quebec, Canada 3Department of Physics, Nagoya University, Nagoya , Japan 4Department of Physics, University of Jyv¨askyl¨a, P. O. Box 35, FI-40014, Finland 5Helsinki Institute of Physics, University of Helsinki, P. O. Box 64, FI-00014, Finland (Received 13 August 2008; published 5 February 2009)‏

Energy loss of partons propagating through medium studied for three different models Simulation based on relativistic fluid dynamics, identical evolution and properties used for each of three models used

Models Higher twist (HT)‏  medium-enhanced higher twist corrections to the total cross section in deep inelastic scattering  ˆq - energy-density Arnold-Moore-Yaffet (AMY)‏  energy loss of hard jets is considered in an extended medium in equilibrium at T →∞  ˆq - temperature Armesto-Salgado-Wiedemann (ASW)‏  ˆq – entropy-density  incoming and outgoing partons multiple scattering effects in terms of a path integral over a path- ordered Wilson line

RAA as a function of the transverse momentum and centrality of collision, as well as the angle with respect to the reaction plane