String breaking in QCD: dual superconductor vs. stochastic vacuum model

Details String breaking in QCD: dual superconductor vs. stochastic vacuum model String breaking in QCD: dual superconductor vs. stochastic vacuum model

2005-01-10

arxiv.org/abs/hep-th/0501065v1

JHEP0503:017,2005

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, no figures, uses JHEP3.cls

Scientific paper

10.1088/1126-6708/2005/03/017

Effects of dispersion of the chromoelectric field of the flux tube on the string-breaking distance are studied. The leading-order correction is shown to slightly diminish the result following from the Schwinger formula. Instead, accounting for corrections of all orders might result, at certain values of the Landau-Ginzburg parameter, in an increase of the string-breaking distance up to one order of magnitude. An alternative formula for this distance is obtained when produced pairs are treated as holes in a confining pellicle, which spans over the contour of an external quark-antiquark pair. Generalizations of the obtained results to the cases of small temperatures, as well as temperatures close to the critical one are also discussed.

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