Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC
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.
Cite
@article{arxiv.1011.0400,
title = {Heavy quark dynamics in the QGP: R_AA and v_2 from RHIC to LHC},
author = {W. M. Alberico and A. Beraudo and A. De Pace and A. Molinari and M. Monteno and M. Nardi and F. Prino},
journal= {arXiv preprint arXiv:1011.0400},
year = {2011}
}
Comments
Talk given at the conference "Hard Probes 2010"