From confining fields back to power corrections

Details From confining fields back to power corrections From confining fields back to power corrections

2005-09-12

arxiv.org/abs/hep-ph/0509114v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, Latex file, Talk given at the QCD 05 International Conference (4-8th July 2005-Montpellier)

Scientific paper

We overview the issue of the power corrections to the parton model, mostly within the context of QCD sum rules. There are a few sources of the power corrections responsible for various qualitative effects. The basic idea that the power corrections are related to confining fields seems to be realized in case of $1/Q^2$ corrections which are dual to high orders of perturbation theory. The evidence comes from lattice studies of the confinement which allowed to identify the confining field configurations as monopoles and vortices. We comment also on the role of the condensate of dimension two, $<(A_{\mu}^a)^2>_{min}$.

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