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Updated: Sep 13, 2025

Non-equilibrium Microwave Plasma for Efficient High Temperature Chemistry
Published on: August 1, 2017
Spatial String Tension and Its Effects on Screening Correlators in a Thermal QCD Plasma
Dibyendu Bala1, Olaf Kaczmarek1, Peter Petreczky2
1Universität Bielefeld, Fakultät für Physik, D-33615 Bielefeld, Germany.
Abstract:
We calculate the spatial Wilson line correlator for 2+1 flavor QCD using highly improved staggered quark discretization for fermions and in quenched QCD for a wide range of temperatures, from the chiral crossover temperature T_{pc}≃156 MeV or the deconfinement temperature ≃300 MeV, respectively, up to 2 GeV. Extracting the spatial string tension for different lattice cutoffs and by performing a continuum extrapolation of this observable, we show that the soft (magnetic) gluons interact nonperturbatively even at temperatures ≳1 GeV. We provide incriminating evidences to demonstrate that dimensionally reduced effective theories can describe these soft quark and gluon quasi-particles for both quenched and 2+1 flavor QCD, at temperatures T≳5T_{pc}. We also show for the first time the imprints of the nonperturbative pseudopotential in the properties of mesonic screening masses for temperatures ranging from 0.8 to 164 GeV in the quark-gluon plasma.
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