Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2010-03-06
Phys.Rev.D81:091501,2010
Physics
High Energy Physics
High Energy Physics - Lattice
Scientific paper
10.1103/PhysRevD.81.091501
Screenings of the quark-gluon plasma in electric and magnetic sectors are studied on the basis of generalized Polyakov-line correlation functions in lattice QCD simulations with two flavors of improved Wilson quarks. Using the Euclidean-time reflection ($\R$) and the charge conjugation ($\Ca$), electric and magnetic screening masses are extracted in a gauge invariant manner. Long distance behavior of the standard Polyakov-line correlation in the quark-gluon plasma is found to be dictated by the magnetic screening. Also, ratio of the two screening masses agrees with that obtained from the dimensionally-reduced effective field theory and the ${\cal N}=4$ supersymmetric Yang-Mills theory.
Aoki Sadao
Ejiri Shinji
Hatsuda Tetsuo
Ishii Naohiro
Kanaya Kazuyuki
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