PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Heavy Ions
Quarkonia production and elliptic flow in small systems measured with ALICE
M. Coquet*  on behalf of the ALICE collaboration
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Pre-published on: November 23, 2022
Published on: June 15, 2023
The production of quarkonia in hadronic collisions provides a unique testing ground for understanding quantum chromodynamics (QCD) since it involves both the perturbative and non-perturbative regimes of this theory. Given that a satisfactory description of quarkonia production has not yet been achieved, new measurements that can provide new insights, helping to constrain models, are needed. The ALICE apparatus allows to measure inclusive J/$\psi$ production, as well as to separate prompt charmonia from those originating from b-hadron decays. The study of the azimuthal correlation of the emitted particles, e.g. via the measurement of the elliptic flow ($v_2$), in high multiplicity proton-proton (pp) collisions can probe collective behaviour in small systems. In this contribution, we present new measurements of the inclusive, prompt and non-prompt J/$\psi$ production in pp collisions at different collision energies, together with J/$\psi$ $v_2$ in high multiplicity pp collisions at $\sqrt s$ = 13 TeV.
DOI: https://doi.org/10.22323/1.414.0444
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