NON-PERTURBATIVE QUARKONIUM DISSOCIATION IN HADRONIC MATTER D. Kharzeev, L. McLerran and H. Satz

5 v 1 1 9 M ay 1 99 5 COLOUR DECONFINEMENT AND QUARKONIUM DISSOCIATION

Bi-tp 63/94 Quarkonium Production in Hadronic Collisions

We summarize the theoretical description of charmonium and bottonium production in hadronic collisions and compare it to the available data from hadron-nucleon interactions. With the parameters of the theory established by these data, we obtain predictions for quarkonium production at RHIC and LHC energies. To appear in Hard Processes in Hadronic Interactions H. Satz and X.-N. Wang (Editors) 1 ...

Return of the prodigal Goldstone boson.

We propose that the mass of the h8 meson is a particularly sensitive probe of the properties of finite energy density hadronic matter and quark-gluon plasma. We argue that the mass of the h8 excitation in hot and dense matter should be small, and, therefore, that the h8 production cross section should be much increased relative to that for pp collisions. This may have observable consequences in...

Quarkonium Feed - Down and Sequential Suppression

About 40-50 % of the quarkonium ground states J/ψ(1S) and Υ(1S) produced in hadronic collisions originate from the decay of higher excitations. In a hot medium, these higher states are dissociated at lower temperatures than the more tightly bound ground states, leading to a sequential suppression pattern. Using new finite temperature lattice results, we specify the in-medium potential between h...

/ 24 Quarkonium Interactions in Hadronic Matter

The cross section for the J/ψ and Υ interaction with light hadrons is calculated in short-distance QCD, based on the large heavy quark mass and the resulting large energy gap to open charm or beauty. The low energy form of the cross section is determined by the gluon structure functions at large x; hence it remains very small until quite high energies. This behaviour is experimentally confirmed...