Secondary Charmonium Production at LHC Energy

Details Secondary Charmonium Production at LHC Energy Secondary Charmonium Production at LHC Energy

1999-08-06

arxiv.org/abs/nucl-th/9908026v1

Nucl.Phys. A661 (1999) 546-549

Physics

Nuclear Physics

Nuclear Theory

4 pages, 4 figures, Presented at Quark Matter 99

Scientific paper

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.

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