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Properties of Color-Coulomb String Tension

Y. Nakagawa·A. Nakamura·T. Saito·H. Toki·D. Zwanziger
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Abstract

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.

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Y. Nakagawa, A. Nakamura, T. Saito, H. Toki, D. Zwanziger. 2006-05-12. Properties of Color-Coulomb String Tension. https://doi.org/10.1103/physrevd.73.094504

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