Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-12-10
PoS Confinement8:130,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
5 pages, 2 figures, proceedings of the Confinement8 Conference, Mainz, Germany, Sept. 1-6, 2008
Scientific paper
We compare away-side hadron correlations with respect to tagged heavy quark jets computed within a weakly coupled pQCD and a strongly coupled AdS/CFT model. While both models feature similar far zone Mach and diffusion wakes, the far zone stress features are shown to be too weak to survive thermal broadening at hadron freeze-out. Observable away-side conical correlations are dominated by the jet-induced transverse flow in near zone "Neck" region, which differs significantly for both models. Unlike in AdS/CFT, the induced transverse flow in the Neck zone is too weak in pQCD to produce conical correlations after Cooper-Frye freeze-out. The observation of conical correlations violating Mach's law would favor the strongly-coupled AdS/CFT string drag dynamics, while their absence would favor weakly-coupled pQCD-based hydrodynamics.
Betz Barbara
Gyulassy Miklos
Noronha Jorge
Torrieri Giorgio
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