Renormalons and 1/Q^2 Corrections

Details Renormalons and 1/Q^2 Corrections Renormalons and 1/Q^2 Corrections

1997-05-14

arxiv.org/abs/hep-ph/9705318v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, LaTeX

Scientific paper

10.1063/1.54478

We argue that the appearance of the Landau pole in the running coupling of QCD introduces 1/Q^2 power corrections in current correlation functions. These terms are not accounted for by the standard operator product expansion and is the price to be paid for the lack of a unique definition of the running coupling at the 1/Q^2 level. We review also possible phenomenological implications of the 1/Q^2 terms in an alternative language of the ultraviolet renormalon.

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