Short distance physics with heavy quark potentials

Details Short distance physics with heavy quark potentials Short distance physics with heavy quark potentials

2001-10-15

arxiv.org/abs/hep-lat/0110103v1

Nucl.Phys.Proc.Suppl. 106 (2002) 519-521

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2001(hightemp), 3 pages, 2 figures

Scientific paper

We present lattice studies of heavy quark potentials in the quenched approximation of QCD at finite temperatures. Both, the color singlet and color averaged potentials are calculated. While the potentials are well known at large distances, we give a detailed analysis of their short distance behavior (from 0.015 fm to 1 fm) near the critical temperature. At these distances we expect that the T-dependent potentials go over into the zero temperature potential. Indeed, we find evidences that the temperature influence gets suppressed and the potentials starts to become a unique function of the underlying distance scale. We use this feature to normalize the heavy quark potentials at short distances and extract the free energy of the quark system in a gluonic heat bath.

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