Azimuthal Jet Tomography at RHIC and LHC

Abstract

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 $dE/dx=\kappa (T)x^z{T}^{2+z}$ that can account for the current data with different temperature-dependent jet-medium couplings $\kappa (T)$ and path-length dependence exponents of $0\le z\le 2$.

arXiv comment4 pages, 4 figures, proceedings of the Quark Matter 2014 conference

References in corpus (25)

• Conformal Relativistic Viscous Hydrodynamics: Applications to RHIC results at sqrt(s_NN) = 200 GeV
• Causal viscous hydrodynamics in 2+1 dimensions for relativistic heavy-ion collisions
• Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN)=2.76 TeV
• Measurement of the azimuthal anisotropy for charged particle production in sqrt(s_NN) = 2.76 TeV lead-lead collisions with the ATLAS detector
• Centrality dependence of charged particle production at large transverse momentum in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• High $p_T$ Azimuthal Asymmetry in Non-central A+A at RHIC
• Measurement of the pseudorapidity and transverse momentum dependence of the elliptic flow of charged particles in lead-lead collisions at sqrt(s_NN) = 2.76 TeV with the ATLAS detector
• Multiplicity scaling in ideal and viscous hydrodynamics
• Radial and elliptic flow in Pb+Pb collisions at the Large Hadron Collider from viscous hydrodynamic
• Static quark anti-quark free energy and the running coupling at finite temperature
• Hydrodynamic elliptic and triangular flow in Pb-Pb collisions at sqrt(s)=2.76ATeV
• Anisotropic flow of charged hadrons, pions and (anti-)protons measured at high transverse momentum in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76$ TeV
• Systematic parameter study of hadron spectra and elliptic flow from viscous hydrodynamic simulations of Au+Au collisions at sqrt(s_NN) = 200 GeV
• Neutral pion production with respect to centrality and reaction plane in Au+Au collisions at sqrt(s_NN)=200 GeV
• Viscous Hydrodynamic Predictions for Nuclear Collisions at the LHC
• Angular Dependence of Jet Quenching Indicates Its Strong Enhancement Near the QCD Phase Transition
• Gluon energy loss in the gauge-string duality
• The Surprising Transparency of the sQGP at LHC
• Azimuthal jet flavor tomography with CUJET2.0 of nuclear collisions at RHIC and LHC
• Jet quenching in the strongly-interacting quark-gluon plasma
• Examining a reduced jet-medium coupling in Pb+Pb collisions at the Large Hadron Collider
• Constraints on the Path-Length Dependence of Jet Quenching in Nuclear Collisions at RHIC and LHC
• Event-by-event azimuthal anisotropy of jet quenching in relativistic heavy ion collisions
• Hard Probe of Geometry and Fluctuations in Heavy Ion Collisions at $\sqrt{s_{{}_{NN}}}=$ 0.2, 2.76, and 5.5 TeV
• Measurement of the azimuthal anisotropy of neutral pions in PbPb collisions at sqrt(s(NN)) = 2.76 TeV

Cited by in corpus (3)

• Angular Momentum in QGP Holography
• Constraining $\eta /s$ through high-p${}_{\perp }$ theory and data
• Theory @ Hard Probes 2013