High-order behaviour and summation methods in perturbative QCD

Details High-order behaviour and summation methods in perturbative QCD High-order behaviour and summation methods in perturbative QCD

1995-12-11

arxiv.org/abs/hep-ph/9512269v1

Acta Phys.Polon. B27 (1996) 2549-2566

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, one PS figure, Latex2e

Scientific paper

After reviewing basic facts about large-order behaviour of perturbation expansions in various fields of physics, I consider several alternatives to the Borel summation method and discuss their relevance to different physical situations. Then I convey news about the singularities in the Borel plane, and discuss the topical subject of the resummation of renormalon chains and its application in various QCD processes.

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