Quarkonium Suppression
نویسنده
چکیده
I discuss quarkonium suppression in equilibrated strongly interacting matter. After a brief review of basic features of quarkonium production I discuss the application of recent lattice data on the heavy quark potential to the problem of quarkonium dissociation as well as the problem of direct lattice determination of quarkonium properties in finite temperature lattice QCD.
منابع مشابه
Quarkonium Production and Colour Deconfinement in Nuclear Collisions
The suppression of quarkonium production in nucleus-nucleus collisions was originally proposed as a signal of colour deconfinement. Strong “anomalous” J/ψ suppression in Pb-Pb collisions has been reported at this Conference by the NA50 Collaboration. Is this suppression really anomalous? Can we conclude that the quark-gluon plasma is already discovered? What has to be done next? I address these...
متن کاملQuarkonium 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...
متن کاملSuppression of Quarkonium Production in Heavy Ion Collisions at RHIC and LHC
A model for the production of quarkonium states in the midrapidity region at RHIC and LHC energy range is presented which explores well understood properties of QCD only. An increase of the quarkonium hadronisation time with the initial energy leads to a gradual change of the most important phenomena from fixed targetto collider-energies. We evaluate nuclear effects in the quarkonium production...
متن کاملHeavy Quarkonium Dissociation Cross Sections in Relativistic Heavy-Ion Collisions
Many of the hadron-hadron cross sections required for the study of the dynamics of matter produced in relativistic heavy-ion collisions can be calculated using the quark-interchange model. Here we evaluate the low-energy dissociation cross sections of J/ψ, ψ′, χ, Υ, and Υ′ in collision with π, ρ, and K, which are important for the interpretation of heavy-quarkonium suppression as a signature fo...
متن کاملCharmonium and bottomonium production in heavy-ion collisions
We review the present status in the theoretical and phenomenological understanding of charmonium and bottomonium production in heavy-ion collisions. Starting from an introductory historical perspective, recapitulating the basic notion of “anomalous quarkonium suppression” in heavy-ion collisions, we develop ingredients and concepts aimed at a comprehensive approach to utilize heavy quarkonia as...
متن کامل