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arXiv · hep-lat/9306016

Can a Logarithmically Running Coupling Mimic a String Tension?

M. Grady
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Abstract

It is shown that a Coulomb potential using a running coupling slightly modified from the perturbative form can produce an interquark potential that appears nearly linear over a large distance range. Recent high-statistics SU(2) lattice gauge theory data fit well to this potential without the need for a linear string-tension term. This calls into question the accuracy of string tension measurements which are based on the assumption of a constant coefficient for the Coulomb term. It also opens up the possibility of obtaining an effectively confining potential from gluon exchange alone.

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BibTeXRIS

M. Grady. 1993-06-21. Can a Logarithmically Running Coupling Mimic a String Tension?. https://doi.org/10.1103/physrevd.50.6009

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