Quarkonium production in Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV with ALICE

Audrey Francisco (1)

1 SUBATECH - Laboratoire de physique subatomique et des technologies associées

Ultra-relativistic heavy-ion collisions at the Large Hadron Collider provide a unique opportunity to study the properties of matter at extreme energy densities where a phase transition from the hadronic matter to a deconfined medium of quarks and gluons, the Quark-Gluon Plasma (QGP) is predicted. Among the prominent probes of the QGP, heavy quarks play a crucial role since they are created during the initial stages of the collision, before the QGP formation, and their number is conserved throughout the partonic and hadronic phases of the collision. The azimuthal anisotropy of charmonium production, quantified using the second harmonic Fourier coefficient (referred to as elliptic flow), provides important information on the magnitude and dynamics of charmonium production. Measurements of the quarkonium nuclear modification factor at forward rapidity and J/ψ elliptic flow in Pb-Pb collisions as a function of centrality, transverse momentum and rapidity will be presented and compared to different collision energy results and available theoretical calculations.Key words: ALICE / heavy-ion collisions / heavy quark / quarkonium / LHC

Mots clés: ALICE; heavy-ion collisions; heavy quark; quarkonium; LHC; talk: Utrecht 2017/07/10; heavy ion: scattering; lead; charmonium: production; quarkonium: production; matter: hadronic; quark gluon: plasma; energy: density; angular distribution: anisotropy; CERN LHC Coll; elliptic flow; rapidity dependence; transverse momentum dependence; impact parameter: dependence; critical phenomena; conservation law; deconfinement; formation; nuclear matter: effect; quark; gluon; experimental results; 5020 GeV-cms/nucleon

Domaines: Physique des Hautes Energies - Expérience [hep-ex]; Physique Nucléaire Expérimentale [nucl-ex]

Audrey Francisco. Quarkonium production in Pb-Pb collisions at $\sqrt{s_\mathrm{NN}}$ = 5.02 TeV with ALICE. 17th International Conference on Strangeness in Quark Matter, Jul 2017, Utrecht, Netherlands. pp.18013, ⟨10.1051/epjconf/201817118013⟩. ⟨hal-02741105⟩