Quarkonia collectivity in large collision systems with ALICE

Abstract

Quarkonium production is one of the golden probes to study the quark--gluon plasma (QGP). Among many observables, the measurement of azimuthal anisotropies in quarkonium production sheds light on the collective behavior of heavy-flavor particles in a strongly interacting medium. In particular, the measurements of the elliptic flow ($v_2$) of quarkonia in Pb--Pb collisions at the LHC provide us direct evidence of heavy quark thermalization in the QGP. In these proceedings, new results of inclusive $J/\psi$ elliptic flow measurement in Pb--Pb collisions carried out by the ALICE collaboration in Run 3 using three methods including event-plane, scalar-product and multi-particle correlation (cumulant) will be presented. The method of cumulant will give access to the $J/\psi$ flow fluctuations at forward rapidity. Alongside the new flow measurements of $J/\psi$, new results of $\mathrm{{\rm Y}}(1S)$ flow measurement at forward rapidity in ALICE Run 3 will be presented as well with comparison to model calculations.

arXiv comment4 pages, 4 figures. Contribution to proceedings of Quark Matter 2025 (6-12 April 2025, Frankfurt, Germany)