(Non)-perturbative properties of high-T QCD from lattice ... - Physics

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F. Karsch, xQCD, July 2008 – p. 13/32SU(3) Equation of Statepressure: LGT vs. HTLhigh T part of the pressure calculated on the lattice is in good agreementwith HTL-resummed perturbation theory for T > ∼3T c1.81.61.41.2p/T 4HTL1.00.80.60.40.20.0(1x1)(1x2)RG(1x2) tadT/T c1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5HTL:J.P. Blaizot,E. Iancu, A. Rebhan,PL B470 (99) 181no need for AdS/QCD to explain ’pressure gap’
The pressure revisitedT> ∼(2-3)T c : deviations from ideal gas understood in terms ofHTL-resummed perturbation theoryT< ∼2T c : strong deviations from ideal gasdeviations from p SB almost flavor independent54p/T 4 p SB /T 41.00.8p/p SB30.6213 flavour2+1 flavour2 flavourpure gauge0.40.23 flavour2 flavour2+1 flavourpure gauge0T [MeV]100 200 300 400 500 6000.0T/T c1.0 1.5 2.0 2.5 3.0 3.5 4.0FK, E. Laermann and A. Peikert, Phys. Lett. B478 (2000) 447F. Karsch, xQCD, July 2008 – p. 14/32
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Page 3: Thermal scales in QCDthe hard scale
Page 7 and 8: Screening of heavy quark free energ
Page 9 and 10: Non-perturbative Debye screeninglea
Page 11 and 12: Non-perturbative Debye screeningµ
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Page 17 and 18: Singlet free energyand asymptotic f
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Page 39 and 40: χ-symmetry restoration300250χ-sym
Page 41 and 42: Deconfinement and χ-symmetryand bu
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(Non)-perturbative properties of high-T QCD from lattice ... - Physics

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