Triviality, perturbation theory and Z → bb

Kenichiro Aoki, Santiago Peris

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

We compute the large-mt contributions to the Zbb vertex in the Standard Model non-perturbatively using both the 1/Nc and the 1/NF expansions. Triviality and its consequences for the perturbative result are systematically analyzed. In particular, we point out that the effect of triviality is already important at the two-loop level for a heavy Higgs (600 GeV < MH < 1 TeV) even when the top mass is below 200 GeV.

Original languageEnglish
Pages (from-to)470-478
Number of pages9
JournalPhysics Letters B
Volume335
Issue number3-4
DOIs
Publication statusPublished - 1994 Sep 8
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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