Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-12-06
Phys.Rev.C78:024903,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
new revised version, 11 figures, as published in PRC
Scientific paper
10.1103/PhysRevC.78.024903
The near zone energy-momentum tensor of a supersonic heavy quark jet moving through a strongly-coupled $\mathcal{N}=4$ SYM plasma is analyzed in terms of first-order Navier-Stokes hydrodynamics. It is shown that the hydrodynamical description of the near quark region worsens with increasing quark velocities. For realistic quark velocities, $v=0.99$, the non-hydrodynamical region is located at a narrow band surrounding the quark with a width of approximately $3/\pi T$ in the direction parallel to the quark's motion and with a length of roughly $10/\pi T$ in the perpendicular direction. Our results can be interpreted as an indication of the presence of coherent Yang-Mills fields where deviation from hydrodynamics is at its maximum. In the region where hydrodynamics does provide a good description of the system's dynamics, the flow velocity is so small that all the nonlinear terms can be dropped. Our results, which are compatible with the thermalization timescales extracted from elliptic flow measurements, suggest that if AdS/CFT provides a good description of the RHIC system, the bulk of the quenched jet energy has more than enough time to locally thermalize and become encoded in the collective flow. The resulting flow pattern close to the quark, however, is shown to be considerably different than the superposition of Mach cones and diffusion wakes observed at large distances.
Gyulassy Miklos
Noronha Jorge
Torrieri Giorgio
No associations
LandOfFree
Near Zone Navier-Stokes Analysis of Heavy Quark Jet Quenching in an $\mathcal{N}$ =4 SYM Plasma does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Near Zone Navier-Stokes Analysis of Heavy Quark Jet Quenching in an $\mathcal{N}$ =4 SYM Plasma, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near Zone Navier-Stokes Analysis of Heavy Quark Jet Quenching in an $\mathcal{N}$ =4 SYM Plasma will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-119994