Scattering of Quark-Quasiparticles in the Quark-Gluon Plasma

Abstract

Employing a Brueckner-type many-body approach, based on a driving potential extracted from lattice QCD, we study light quark properties in a Quark-Gluon Plasma (QGP) at moderate temperatures, $T\simeq$~1-2~$T_c$. The quark-antiquark $T$-matrix is calculated self-consistently with pertinent quark self-energies. While the repulsive octet channel induces quasiparticle masses of up to 150~MeV, the attractive color-singlet part exhibits resonance structures which lead to quasiparticle widths of $\sim$200~MeV.

Talk presented at Quark Matter 2005; four pages, four figures

References in corpus (3)

• Towards a Theory of Binary Bound States in the Quark-Gluon Plasma
• Hadronic Modes and Quark Properties in the Quark-Gluon Plasma
• Erratum "The Quark-Gluon-Plasma Liquid"

Cited by in corpus (4)

• Effective degrees of freedom and gluon condensation in the high temperature deconfined phase
• Ground State Quarkonium Spectral Functions Above Deconfinement
• Screened potential and quarkonia properties at high temperatures
• On the Temperature-Dependence of Quarkonia Correlators