Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
2006-03-09
Phys.Rev. D73 (2006) 094504
Physics
High Energy Physics
High Energy Physics - Lattice
17 pages, 5 figures; one new figure added, typos corrected, version to appear in PRD
Scientific paper
10.1103/PhysRevD.73.094504
We study the properties of the color-Coulomb string tension obtained from the instantaneous part of gluon propagators in Coulomb gauge using quenched SU(3) lattice simulation. In the confinement phase, the dependence of the color-Coulomb string tension on the QCD coupling constant is smaller than that of the Wilson loop string tension. On the other hand, in the deconfinement phase, the color-Coulomb string tension does not vanish even for $T/T_c = 1 \sim 5$, the temperature dependence of which is comparable with the magnetic scaling, dominating the high temperature QCD. Thus, the color-Coulomb string tension is not an order parameter of QGP phase transition.
Nakagawa Yasuhiro
Nakamura Akihiro
Saito Takesi
Toki Hiroshi
Zwanziger Daniel
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