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The nature of power corrections in large $β_0$ approximation

Taekoon Lee
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Abstract

We investigate the nature of power corrections and infrared renormalon singularities in large $β_0$ 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 $O(1/β_0)$, and give an explanation why the leading order renormalon singularities are generically poles.

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Taekoon Lee. 2004-06-21. The nature of power corrections in large $β_0$ approximation. https://doi.org/10.1142/s0217732304015300

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