ANL Physics Division Seminar Schedule

An overview is given on the assessment of hadronic properties in hot and dense strongly interacting matter. Below the critical temperature, the focus is on many-body approaches in the light-flavor sector, including scalar, pseudoscalar, vector and axialvector modes and their relation to chiral symmetry breaking and restoration. Applications to high-energy heavy-ion collisions include dileptons, photons, and invariant-mass spectra of resonance decays. Above the critical temperature we discuss possible consequences of recent lattice QCD results indicating the survival of resonance states in the QGP. A concrete realization is presented for the charmonium sector in terms of a rate equation approach including regeneration in the QGP.