The nature of power corrections in large $β_0$ approximation

Details The nature of power corrections in large $β_0$ approximation The nature of power corrections in large $β_0$ approximation

2003-03-28

arxiv.org/abs/hep-ph/0303240v3

Mod.Phys.Lett. A19 (2004) 2371-2376

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages

Scientific paper

10.1142/S0217732304015300

We investigate the nature of power corrections and infrared renormalon singularities in large $\beta_0$ approximation. We argue that the power correction associated with a renormalon pole singularity should appear at O(1), in contrast to the renormalon ambiguity appearing at $O(1/\beta_0)$, and give an explanation why the leading order renormalon singularities are generically poles.

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