Secondary Charmonium Production at LHC Energy

Abstract

We consider the production of charmonium by $D\bar{D}$ annihilation during the mixed and hadronic phase of Pb-Pb collision at LHC energy. The calculations for secondary $J/\psi$ and ${\psi }^{,}$ production are performed within a kinetic model taking into account the space-time evolution of a longitudinally and transversely expanding medium. It is shown that the yield of secondary $J/\psi$ mesons depends strongly on the $J/\psi$ dissociation cross section with co-moving hadrons. Within the most likely scenario for the dissociation cross section it will be negligible. The secondary production of ${\psi }^{,}$ mesons, however, due to their large cross section above the threshold, can substantially exceed the primary yield.

4 pages, 4 figures, Presented at Quark Matter 99

Cited by in corpus (11)

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• Charmonium Suppression and Regeneration from SPS to RHIC
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• Open and hidden charm in proton-nucleus and heavy-ion collisions
• J/psi suppression in ultrarelativistic nuclear collisions
• D mesons at finite temperature and density in the PNJL model
• Mott effect at the chiral phase transition and anomalous J/Psi suppression
• Charmonium dynamics in nucleus-nucleus collisions at SPS and FAIR energies
• Effective hadronic Lagrangian for charm mesons
• Evidence for non-hadronic interactions of charm degrees of freedom in heavy-ion collisions at relativistic energies