Three Flavor QCD at High Temperatures

Perturbative versus Lattice QCD Energy Density Correlators at High Temperatures†

Correlators of magnetic and electric field energy density are investigated for SU(Nc) gauge theory at high temperatures T . At separations z ≤ 2/T the correlators are shown to be dominated by a power–law behavior even for finite gluon screening masses. This continuum behavior is well approximated on current 4×163–lattices in the perturbative limit and leads to a considerable overestimate of scr...

J/Ψ at high temperatures in anisotropic lattice QCD

J/Ψ and ηc above the QCD critical temperature Tc are studied in anisotropic quenched lattice QCD, considering whether the cc̄ systems above Tc are compact quasi-bound states or scattering states. We adopt the standard Wilson gauge action and O(a)-improved Wilson quark action with renormalized anisotropy as/at = 4 at β = 6.10 on 163 × (14−26) lattices, which correspond to the spatial lattice volu...

QCD Propagators at non-vanishing temperatures

We investigate the behaviour of the gluon and ghost propagators, especially their infrared properties, at non-vanishing temperatures. To this end we solve their Dyson-Schwinger equations on a torus and find an infrared enhanced ghost propagator and an infrared vanishing gluon propagator. Lattice simulations provide evidence that zero-flavour QCD undergoes a ”deconfining” phase transition at som...

Three flavor dynamical QCD project by CP - PACS / JLQCD ∗

Non-Perturbative Determination of cSW in Three-flavor Dynamical QCD

N. Tsutsui, c A. Ukawa, a,d T. Umeda, N. Yamada and T. Yoshié Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8571, Japan Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan Center for Computational Physics, University of Tsukuba, Tsukuba, Ibaraki 305-8577, ...