Non-decoupling, triviality and the ϱ parameter

Kenichiro Aoki, Santiago Peris

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The dependence of the ρ{variant} parameter on the mass of the Higgs scalar and the top quark is computed non-perturbatively using the 1/NF expansion in the standard model. We find an explicit expression for the ρ{variant} parameter that requires the presence of a physical cutoff. This should come as no surprise since the theory is presumably trivial. By taking this cutoff into account, we find that the ρ{variant} parameter can take values only within a limited range and has finite ambiguities that are suppressed by inverse powers of the cutoff scale, the so called "scaling-violations". We find that large deviations from the perturbative results are possible, but only when the cutoff effects are also large.

本文言語English
ページ(範囲)303-312
ページ数10
ジャーナルZeitschrift für Physik C Particles and Fields
61
2
DOI
出版ステータスPublished - 1994 6
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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