學術報告：Heavy Quarkonia in the Quark-Gluon Plasma

報告題目： Heavy Quarkonia in the Quark-Gluon Plasma 報告人： Ralf Rapp教授（Texas A&M）報告時間： 8月23日，周五，下午16：00 報告地點：物理系三樓報告廳摘要： Heavy quarks (charm and bottom) provide a versatile tool to study the properties of the Quark-Gluon Plasma (QGP), e.g., deconfinement, color screening of the fundamental QCD force and heavy-flavor transport. The large quark mass offers unique opportunities for theoretical control over pertinent in-medium quantities. We will introduce a Brueckner-type T-matrix approach to comprehensively investigate both quarkonia and heavy-flavor transport in the medium. Constraints from vacuum spectroscopy, perturbative QCD and thermal lattice-QCD are applied to improve the reliability of the calculations. The heavy-quark T-matrices in the QGP lead to resonance formation close to Tc which naturally leads to coalescence mechanisms for hadronization. We then implement the quarkonium T-matrix results into an inelastic transport approach through the QGP, hadronization and the hadronic phase, to compute observables in heavy-ion collisions.
Our results will be compared to a broad set of charmonium and bottomonium data at SPS, RHIC and LHC.