Dyson-Schwinger Equation Approach to the QCD Deconfinement Transition and J/Psi Dissociation

Details Dyson-Schwinger Equation Approach to the QCD Deconfinement Transition and J/Psi Dissociation Dyson-Schwinger Equation Approach to the QCD Deconfinement Transition and J/Psi Dissociation

2000-02-04

arxiv.org/abs/hep-ph/0002047v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 6 figures, sprocl.sty, to appear in: "Progress in Nonequilibrium Green's functions", M. Bonitz (Ed.), World Scientif

Scientific paper

We consider an extension of the finite-temperature Dyson-Schwinger equation (DSE) approach to heavy mesons and quarkonia and apply it to calculate the cross section for the J/Psi breakup reaction J/Psi + pi --> D + D. We study the effects of chiral symmetry restoration in the light quark sector on this process and obtain a critical enhancement of the reaction rate at the chiral/ deconfinement transition. Implications for the kinetics of charmonium production in ultrarelativistic heavy-ion collisions are discussed with particular emphasis on the recently observed anomalous J/Psi suppression as a possible signal for quark matter formation.

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