Thermal Production of Charmonia at the LHC Energies

Abstract

This work studies the thermal production of $J/\psi$ and $\psi (2S)$ with Boltzmann transport model in the Quark Gluon Plasma (QGP) produced in $\sqrt{s_{NN}}=5.02$ TeV Pb-Pb collisions. $J/\psi$ nuclear modification factors are studied in details with the mechanisms of primordial production and the recombination of charm and anti-charm quarks in the thermal medium. $\psi (2S)$ binding energy is much smaller in the hot medium compared with the ground state, so $\psi (2S)$ with middle and low $p_T$ can be mainly thermally regenerated in the later stage of QGP expansions which enables $\psi (2S)$ inherit larger collective flows from the bulk medium. We quantitatively study both nuclear modification factors of $J/\psi$ and $\psi (2S)$ in different centralities and transverse momentum bins in $\sqrt{s_{NN}}=5.02$ TeV Pb-Pb collisions.

9 pages, 12 figures. Published version in Chinese Physics C

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Cited by in corpus (15)

• X(3872) Production in Relativistic Heavy-Ion Collisions
• Probe the tilted Quark-Gluon Plasma with charmonium directed flow
• Measurements of inclusive J/$\psi$ production at midrapidity and forward rapidity in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Bottom energy loss and non-prompt $J/\psi$ production in relativistic heavy ion collisions
• Probe the color screening in proton-nucleus collisions with complex potentials
• Charmonium Triangular Flow in High Energy Nuclear Collisions
• Bottomonium sequential suppression and strong heavy-quark potential in heavy-ion collisions
• Prompt and non-prompt J$/\psi$ production at midrapidity in Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• Probing QGP droplets with charmonium in high-multiplicity proton-proton collisions
• Non-thermal distributions of charm and charmonium in relativistic heavy-ion collisions
• Bottomonium transport in p-Pb and Pb-Pb collisions at the LHC
• Charmonium dissociation at high baryon chemical potential
• Nuclear modification of $B_c$ mesons in relativistic heavy-ion collisions based on a linear Boltzmann transport model
• Hadronic effects on charmonium elliptic flows in heavy-ion collisions
• Anisotropic flows of charmonium in the relativistic heavy-ion collisions