Charmonium production from the hadronic phase

Abstract

Charmonium production from the hadron gas formed in ultra-relativistic heavy-ion collisions is studied. Using the $J/\psi$-hadron absorption cross section determined from the nonperturbative quark-exchange model, which has a peak value similar to that used in the comover model for $J/\psi$ suppression and a thermally averaged value consistent from that extracted from $J/\psi$ data in heavy-ion collisions, we find that $J/\psi$ production from the hadron gas is negligible in heavy-ion collisions at RHIC energies but is important at LHC energies as a result of the large number of charm mesons produced at higher energy collisions. The number of $J/\psi$ produced from these secondary collisions at LHC may be comparable to that of primary $J/\psi$'s, which are expected to be dissociated in the quark-gluon plasma created in the collisions, leading thus to a possible absence of $J/\psi$ suppression. Similar results are obtained for ${\psi }^{\prime }$ production in ultra-relativistic heavy-ion collisions.

10 pages, 3 figures

References in corpus (3)

• $J/\psi$ suppression in heavy ion collsions and the QCD phase transition
• Excess of pions with chiral symmetry restoration
• Production and Suppression of Charmonium in Nuclear Collisions

Cited by in corpus (24)

• Charmonium and bottomonium production in heavy-ion collisions
• Model for $J/\psi$ absorption in hadronic matter
• Open charm and charmonium production at relativistic energies
• Charm couplings and form factors in QCD sum rules
• Open and hidden charm in proton-nucleus and heavy-ion collisions
• J/psi suppression in ultrarelativistic nuclear collisions
• J/psi production in relativistic heavy ion collisions from a multi-phase transport model
• $X(3872)$ production and absorption in a hot hadron gas
• Pentaquark baryon production at the Relativistic Heavy Ion Collider
• Thermal Charm Production in Quark-Gluon Plasma at LHC
• D mesons at finite temperature and density in the PNJL model
• Hadronic form factors and the $J/\psi$ secondary production cross section: an update
• $D_{sJ}$(2317) meson production at RHIC
• Mott effect at the chiral phase transition and anomalous J/Psi suppression
• Charmonium dynamics in nucleus-nucleus collisions at SPS and FAIR energies
• Hadronic effects on the $cc\bar{q}\bar{q}$ tetraquark state in relativistic heavy ion collisions
• Effective hadronic Lagrangian for charm mesons
• Evidence for non-hadronic interactions of charm degrees of freedom in heavy-ion collisions at relativistic energies
• Secondary Charmonium Production at LHC Energy
• Quantum mechanical model for J/psi suppression in the LHC era
• Physics of Ultra-Relativistic Nuclear Collisions with Heavy Beams at LHC Energy
• Hadronic $J/\psi$ Regeneration in Pb+Pb Collisions
• Quarkonia and heavy flavors at the LHC
• Physics of the Muon Spectrometer of the ALICE Experiment