arXiv (Cornell University) · 2006 · 10 citations · 0 references
Natural SciencesPhysicsComputational PhysicsNuclear PhysicsParticle PhysicsFlavor PhysicsHadron SpectroscopyQuantum Field TheoryCharmonium SpectrumFinite Temperature Quantum ChromodynamicsHeavy Flavor PhysicsQuark-hadron Phase TransitionQuark-hadron Transition
Charmonium systems in two-flavour QCD at non-zero temperature are studied at, and above the deconfining transition. Using anisotropic lattices the MEM approach is used to extract spectral functions for these channels. By carefully varying some of the irrelevant parameters in the MEM procedure, we confirm that our systematic effects are under control. The eta_c and J/psi states are found to persist at temperatures >~ 1.3 T_c in agreement with our previous dynamical studies.