Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-06-09
J.Phys. G32 (2006) S351-S358
Physics
High Energy Physics
High Energy Physics - Phenomenology
8 pages, 14 figures, contribution to the proceedings for the "International Conference on Strangeness in Quark Matter 2006"
Scientific paper
10.1088/0954-3899/32/12/S43
We discuss recent developments in assessing heavy-quark interaction in the Quark-Gluon Plasma (QGP). While induced gluon radiation is expected to be the main energy-loss mechanism for fast-moving quarks, we focus on elastic scattering which prevails toward lower energies, evaluating both perturbative (gluon-exchange) and nonperturbative (resonance formation) interactions in the QGP. The latter are treated within an effective model for D- and B-meson resonances above T_c as motivated by current QCD lattice calculations. Pertinent diffusion and drag constants, following from a Fokker-Planck equation, are implemented into an expanding fireball model for Au-Au collisions at RHIC using relativistic Langevin simulations. Heavy quarks are hadronized in a combined fragmentation and coalescence framework, and resulting electron-decay spectra are compared to recent RHIC data. A reasonable description of both nuclear suppression factors and elliptic flow up to momenta of ~5 GeV supports the notion of a strongly interacting QGP created at RHIC. Consequences and further tests of the proposed resonance interactions are discussed.
Hees Hendrik van
Rapp Ralf
No associations
LandOfFree
Heavy-Quark Diffusion, Flow and Recombination at RHIC 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 Heavy-Quark Diffusion, Flow and Recombination at RHIC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy-Quark Diffusion, Flow and Recombination at RHIC will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-409930