English

Renormalons beyond the Borel plane

High Energy Physics - Theory 2021-01-27 v2 Mathematical Physics math.MP

Abstract

The renormalon singularities are a known source of the divergent behavior of asymptotic perturbative series from field theoretical models. These singularities live in the Borel plane and are responsible for ambiguities in the physical plane. We propose that field theories can have renormalons beyond the usual first Borel plane. We show an example with a scalar field theory where, considering a chain of cat's eyes diagrams, the model develops a Gevrey-3 asymptotic series.

Keywords

Cite

@article{arxiv.2011.11175,
  title  = {Renormalons beyond the Borel plane},
  author = {Erich Cavalcanti},
  journal= {arXiv preprint arXiv:2011.11175},
  year   = {2021}
}

Comments

2 figures, 9 pages

R2 v1 2026-06-23T20:26:03.804Z