Compelling evidence of renormalons in QCD from high order perturbative expansions

Clemens Bauer, Gunnar S. Bali, Antonio Pineda

Research output: Contribution to journalArticleResearchpeer-review

33 Citations (Scopus)

Abstract

We compute the static self-energy of SU(3) gauge theory in four spacetime dimensions to order α20 in the strong coupling constant α. We employ lattice regularization to enable a numerical simulation within the framework of stochastic perturbation theory. We find perfect agreement with the factorial growth of high order coefficients predicted by the conjectured renormalon picture based on the operator product expansion. © 2012 American Physical Society.
Original languageEnglish
Article number242002
JournalPhysical Review Letters
Volume108
Issue number24
DOIs
Publication statusPublished - 12 Jun 2012

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