Charm and Bottom quarks dynamics in heavy-ion collisions: R_AA, anisotropic flows v_n and their correlations to the bulk

¹ Department of Physics and Astronomy ’E. Majorana’, University of Catania, Via S. Sofia 64, 1-95123 Catania, Italy
² Laboratori Nazionali del Sud, INFN-LNS, Via S. Sofia 62, I-95123 Catania, Italy

^* e-mail: sambataro@lns.infn.it

Published online: 1 February 2022

Abstract

We describe the propagation of heavy quarks (HQs), charm and bottom, in the quark-gluon plasma (QGP) by means of a full Boltzmann transport approach including event-by-event fluctuations within a coalescence plus fragmentation hadronization. The non-perturbative dynamics of the interaction between HQs and plasma particles have been taken into account through a Quasi-Particle Model (QPM). We show that the resulting charm in-medium evolution is able to correctly predict simultaneously not only the experimental data for the average D-mesons R_AA(p_T) and v_2,3(p_T) at LHC energies but also the extension of the analysis to the event-shape engineeering tecnique that classify events according to magnitude of the second-order harmonic reduced flow vector q₂. In the same scheme we show predictions for R_AA(p_T) of electrons from semi-leptonic B-mesons decays at top LHC energies. Our results entail a determination of D_s which is consistent with the lattice QCD calculations.