Charmonium dissociation and recombination at RHIC and LHC

Understand

Charmonium production at heavy-ion colliders is considered within the comovers interaction model.

• The formalism is extended by including possible secondary J/psi production through recombination and an estimate of recombination effects is made with no free parameters involved.
• The comovers interaction model also includes a comprehensive treatment of initial-state nuclear effects, which are discussed in the context of such high energies.
• With these tools, the model properly describes the centrality and the rapidity dependence of experimental data at RHIC energy, $\sqrt{s}$ = 200 GeV, for both Au+Au and Cu+Cu collisions.