Nonperturbative evidence for nondecoupling of heavy fermions

Kenichiro Aoki, Santiago Peris

研究成果: Article査読

10 被引用数 (Scopus)

抄録

We investigate, using a 1/N expansion, the behavior of a parameter in the scalar-fermion sector of the standard model that shows perturbative nondecoupling as the fermion becomes heavy. This low-energy parameter is related to the S parameter defined through W3-B mixing. We obtain the leading 1/N contribution to this parameter that, if expanded perturbatively, collapses to its constant one-loop result. Nonperturbatively, we find that as the mass of the fermion approaches the triviality scale the behavior of the parameter is nonuniversal and shows nondecoupling.

本文言語English
ページ(範囲)1743-1746
ページ数4
ジャーナルPhysical review letters
70
12
DOI
出版ステータスPublished - 1993
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

フィンガープリント 「Nonperturbative evidence for nondecoupling of heavy fermions」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル