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| Hauptseite > Publikationsdatenbank > Static $ \overline{\mathrm{Q}}\mathrm{Q} $ pair free energy and screening masses from correlators of Polyakov loops: continuum extrapolated lattice results at the QCD physical point |
| Hauptseite > Publikationsdatenbank > Static $ \overline{\mathrm{Q}}\mathrm{Q} $ pair free energy and screening masses from correlators of Polyakov loops: continuum extrapolated lattice results at the QCD physical point |
| Journal Article | FZJ-2016-00862 |
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2015
Springer
Berlin
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Please use a persistent id in citations: http://hdl.handle.net/2128/9740 doi:10.1007/JHEP04(2015)138
Abstract: We study the correlators of Polyakov loops, and the corresponding gauge invariant free energy of a static quark-antiquark pair in 2+1 flavor QCD at finite temperature. Our simulations were carried out on N$_{t}$ = 6, 8, 10, 12, 16 lattices using a Symanzik improved gauge action and a stout improved staggered action with physical quark masses. The free energies calculated from the Polyakov loop correlators are extrapolated to the continuum limit. For the free energies we use a two step renormalization procedure that only uses data at finite temperature. We also measure correlators with definite Euclidean time reversal and charge conjugation symmetry to extract two different screening masses, one in the magnetic, and one in the electric sector, to distinguish two different correlation lengths in the full Polyakov loop correlator.
Keyword(s): Polyakov loop: correlation function ; mass: screening ; free energy: calculated ; quark: mass dependence ; charge conjugation: symmetry ; quark antiquark: static ; quark antiquark: pair ; correlation: length ; quark: flavor: 3 ; invariance: gauge ; quantum chromodynamics: lattice ; finite temperature ; numerical calculations ; continuum limit ; renormalization ; time reversal ; quark: staggered
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