Quarkonia collectivity in large collision systems with ALICE

Université Paris-Saclay, Centre d'Etudes de Saclay (CEA), IRFU, Department de Physique Nucléaire (DPhN), Saclay, France

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Published online: 17 April 2026

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 (v₂) 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/ψ 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/ψ flow fluctuations at forward rapidity. Alongside the new flow measurements of J/ψ, new results of Υ(1S ) flow measurement at forward rapidity in ALICE Run 3 will be presented as well with comparison to model calculations.