Speaker
Description
Heavy quarks (charm and beauty) are useful probes for investigating the properties of the quark-gluon plasma (QGP) generated in ultra-relativistic heavy-ion collisions. Their participation in the collective motion of the medium can be assessed by measuring the prompt and non-prompt charm-hadron elliptic-flow coefficient $v_2$, originating from the initial-state spatial asymmetry in non-central heavy-ion collisions. These measurements provide fundamental inputs to constrain theoretical models describing the heavy-quark transport in the QGP, as well as its possible thermalization in the medium. In addition, the comparison between meson and baryon $v_2$ can provide further insights into medium-induced phenomena, such as the radial flow and the heavy-quark hadronization via coalescence.
In this contribution, the first measurements of prompt- and non-prompt $\mathrm{D^0}$-, $\mathrm{D^+}$-, $\mathrm{D_s^+}$-meson and $\Lambda_\mathrm{c}^+$-baryon $v_2$ in different centrality intervals of Pb--Pb collisions at $\sqrt{s_\mathrm{NN}} = 5.36$ TeV collected by the ALICE experiment during the LHC Run 3 are shown. The measurements are compared to model predictions that incorporate various implementations of heavy-quark interaction and hadronization with the QGP constituents. Moreover, the status of the measurement of the $\mathrm{D^0}$-meson elliptic flow in pp collisions is presented.
