2013/05/05 by Dénes Molnár, Denes Molnar, Molnar, Denes +2 · 2 citations
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #nucl-th
paper · pdf · doi:10.48550/arxiv.1305.1046
9 pages, 8 EPS figures, RevTex style
arxiv created 2013/05/05 · openalex publication_date 2013/05/05 · arxiv updated 2013/05/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We investigate nuclear suppression and elliptic flow in A+A reactions using Gyulassy-Levai-Vitev (GLV) radiative energy loss with the covariant transport MPC for bulk medium evolution. At both RHIC and LHC energies, we find that inclusion of realistic transverse expansion for the medium strongly suppresses elliptic flow at high pT compared to calculations with longitudinal Bjorken expansion only. We argue that this is a generic feature of GLV energy loss. Transverse expansion also enhances the high-pT suppression, while fluctuations in energy loss with the rescattering location of the jet parton in the medium lead to weaker suppression and smaller elliptic flow. However, unlike the strong reduction of elliptic flow with transverse expansion, these latter effects get nearly washed out once calculations are adjusted to reproduce RAA in central collisions.