Heavy quark potentials in quenched QCD at high temperature

Heavy quark potentials are investigated at high temperatures. The temperature range covered by the analysis extends from $T$ values just below the deconfinement temperature up to about ${4T}_{c}$ in the deconfined phase. We simulated the pure gauge sector of QCD on lattices with temporal extents of 4, 6, and 8, with spatial volumes of ${32}^{3}.$ On the smallest lattice a tree level improved action was employed, while in the other two cases the standard Wilson action was used. Below ${T}_{c}$ we find a temperature-dependent logarithmic term contributing to the confinement potential, and observe a string tension which decreases with rising temperature but retains a finite value at the deconfinement transition. Above ${T}_{c}$ the potential is Debye screened; however, simple perturbative predictions do not apply.

• Publication year

  1999

• Venue

  Physical Review D

• Publication date

  1999-08-10

• Fields of study

  Physics

• Identifiers
  DOI 10.1103/PhysRevD.62.034021arXiv hep-lat/9908010
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar

• No claims are published for this paper.

• No concepts are published for this paper.

• No references are available for this paper.

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