(Non)-perturbative properties of high-T QCD from lattice ... - Physics
(Non)-perturbative properties of high-T QCD from lattice ... - Physics
(Non)-perturbative properties of high-T QCD from lattice ... - Physics
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Screening <strong>of</strong> heavy quark free energies– remnant <strong>of</strong> confinement above T c –pure gauge: O.Kaczmarek, FK, P. Petreczky, F. Zantow, PRD70 (2005) 0745052-flavor <strong>QCD</strong>: O.Kaczmarek, F. Zantow, Phys. Rev. D71 (2005) 114510singlet free energy(in Coulomb gauge)1000T ≃ T c : screening forr> ∼0.5fmF 1 (r, T) ∼ α(T)r+const.500e −µ(T)r0-500F 1 [MeV]r [fm]0.76T c0.81T c0.90T c0.96T c1.00T c1.02T c1.07T c1.23T c1.50T c1.98T c4.01T c0 0.5 1 1.5 2 2.5 34α(r, T = 0)F 1 (r, T) follows linear rise <strong>of</strong> V¯qq (r, T = 0) = −3rfor T< ∼1.5T c , r< ∼0.3 fm+ σrF. Karsch, x<strong>QCD</strong>, July 2008 – p. 10/32
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