Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1845504 | Nuclear Physics B - Proceedings Supplements | 2012 | 5 Pages |
Abstract
Motivated by the recent 4-loop analysis of the JLab data on Bjorken Sum Rule, where the pQCD series seems to blow up at |Q|≲1.5GeV, , we overview the general origin of the divergency of common perturbation expansion over powers of a small coupling parameter in QFT and consider in detail the blowing-up phenomenon and accuracy of finite sums for simple alternating and non-alternating examples of divergent series.
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