English

Large-order Behaviour due to Ultraviolet Renormalons in QCD

High Energy Physics - Phenomenology 2009-10-30 v1

Abstract

Ultraviolet renormalons, contrary to their infrared counterparts, lead to a universal contribution to the large-order behaviour of perturbative expansions in QCD. In this letter, we determine nature of the leading ultraviolet renormalon singularity for the inclusive hadroproduction cross section in e+ee^+ e^- annihilation, for hadronic τ\tau decays and the moments of deep-inelastic scattering structure functions. We comment on the relevance of ultraviolet renormalons to estimates in low orders of perturbation theory.

Cite

@article{arxiv.hep-ph/9703389,
  title  = {Large-order Behaviour due to Ultraviolet Renormalons in QCD},
  author = {M. Beneke and V. M. Braun and N. Kivel},
  journal= {arXiv preprint arXiv:hep-ph/9703389},
  year   = {2009}
}

Comments

9 pages, LaTeX

R2 v1 2026-07-22T14:36:25.997Z