Hadronic Spectral Function and Charm Meson Production

Abstract

At the chiral restoration/deconfinement transition, most hadrons undergo a Mott transition from being bound states in the confined phase to resonances in the deconfined phase. We investigate the consequences of this qualitative change in the hadron spectrum on final state interactions of charmonium in hot and dense matter, and show that the Mott effect for D-mesons leads to a critical enhancement of the J/Psi dissociation rate. Anomalous J/Psi suppression in the NA50 experiment is discussed as well as the role of the Mott effect for the heavy flavor kinetics in future experiments at the LHC. The status of our calculations of hadron-hadron cross sections using the quark interchange and chiral Lagrangian approaches is reviewed, and an Ansatz for a unification of these schemes is given.

arXiv comment12 pages, 6 figures, Proceedings of the Budapest'02 Workshop on Quark & Hadron Dynamics, Budapest, Hungary, March 3-7, 2002

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Cited by in corpus (3)

• Thermalization of Heavy Quarks in the Quark-Gluon Plasma
• Heavy quark transport in heavy ion collisions at RHIC and LHC within the UrQMD transport model
• Elliptic flow and $R_{AA}$ of D mesons at FAIR comparing the UrQMD hybrid model and the coarse-graining approach