Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
arXiv:1011.0400 · doi:10.1016/j.nuclphysa.2011.02.091
Abstract
We study the stochastic dynamics of c and b quarks in the hot plasma produced in nucleus-nucleus collisions at RHIC and LHC, providing results for the nuclear modification factor R_AA and the elliptic flow coefficient v_2 of the single-electron spectra arising from their semi-leptonic decays. The initial QQbar pairs are generated using the POWHEG code, implementing pQCD at NLO. For the propagation in the plasma we develop a relativistic Langevin equation (solved in a medium described by hydrodynamics) whose transport coefficients are evaluated through a first-principle calculation. Finally, at T_c, the heavy quarks are made hadronize and decay into electrons: the resulting spectra are then compared with RHIC results. Predictions for LHC are also attempted.
Talk given at the conference "Hard Probes 2010"
References in corpus (8)
- PYTHIA 6.4 Physics and Manual
- Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
- EPS09 - a New Generation of NLO and LO Nuclear Parton Distribution Functions
- Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
- Towards an understanding of the RHIC single electron data
- Heavy Quark Diffusion with Relativistic Langevin Dynamics in the Quark-Gluon Fluid
- Collisional energy loss of a fast heavy quark in a quark-gluon plasma
- Transport properties and Langevin dynamics of heavy quarks and quarkonia in the Quark Gluon Plasma