ИСТИНА

Studying the charmed hadron production is a particularly useful tool to probe properties of hot and dense matter created in relativistic heavy ion collisions, and to extract the information about mechanisms of in-medium heavy quark thermalization. In this report, the phenomenological analysis of the LHC data on momentum spectra and elliptic flow of charmed hadrons (J/Psi and D mesons) in PbPb collisions at the center-of-mass energy 2.76 TeV per nucleon pair has been done in the frameworks of two-component HYDJET++ model. Among other heavy ion event generators, HYDJET++ focuses on the detailed simulation of jet quenching effect taking into account medium-induced radiative and collisional partonic energy loss (hard "non-thermal" component), and also reproducing the main features of nuclear collective dynamics by the parametrization of relativistic hydrodynamics with preset freeze-out conditions (soft "thermal" component). The charmed meson production pattern in PbPb collisions at the LHC is reproduced by HYDJET++ simulations, and agrees with the high degree of c-quark thermalization in quark-gluon plasma.