Azimuthal jet tomography at RHIC and LHC

作者：Betz Barbara^*; Gyulassy Miklos

来源：Nuclear Physics A, 2014, 931: 410-415.

DOI：10.1016/j.nuclphysa.2014.08.109

• Jet quenching
• Viscous hydrodynamics
• Jet holography

Results based on a generic jet-energy loss model that interpolates between running coupling pQCD-based and AdS/CFT-inspired holographic prescriptions are compared to recent data on the high-p(T) pion nuclear modification factor and the high-p(T) elliptic flow in nuclear collisions at RHIC and LHC. The jet-energy loss model is coupled to various (2 + 1)d (viscous hydrodynamic) fields. The impact of energy-loss fluctuations is discussed. While a previously proposed AdS/CFT jet-energy loss model with a temperature-independent jet-medium coupling is shown to be inconsistent with the LHC data, we find a rather broad class of jet-energy independent energy-loss models dE/dx = k(T)x(z)T(2+z) that can account for the current data with different temperature-dependent jet-medium couplings K(T) and path-length dependence exponents of 0 %26lt;= z %26lt;= 2.

• 出版日期2014-11