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arXiv · hep-lat/0312019

Excitations of the static quark-antiquark system in several gauge theories

K. Jimmy Juge·Julius Kuti·Colin Morningstar
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Abstract

The spectrum of gluons in the presence of a static quark-antiquark pair is studied using Monte Carlo simulations on anisotropic space-time lattices. For very small quark-antiquark separations R, the level orderings and approximate degeneracies disagree with the expectations from an effective string theory. As the quark-antiquark separation R increases, a dramatic rearrangement of the energies occurs, and above 2 fm, all of the levels studied show behavior consistent with an effective string description. The energy spacings are nearly pi/R, but a tantalizing fine structure remains. In addition to 4-dimensional SU(3) gauge theory, results from 3-dimensional SU(2) and compact U(1) gauge theories are also presented.

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K. Jimmy Juge, Julius Kuti, Colin Morningstar. 2003-12-12. Excitations of the static quark-antiquark system in several gauge theories. https://doi.org/10.1142/9789812702845_0017

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