Two-loop renormalization of tan β and its gauge dependence

研究成果: Article査読

14 被引用数 (Scopus)

抄録

Renormalization of two-loop divergent corrections to the vacuum expectation values (v1, v2) of the two Higgs doublets in the minimal supersymmetric standard model, and their ratio tan β = v2/v1, is discussed for general Rξ gauge fixings. When the renormalized (v1, v2) are defined to give the minimum of the loop-corrected effective potential, it is shown that, beyond the one-loop level, the dimensionful parameters in the Rξ gauge fixing term generate gauge dependence of the renormalized tan β. Additional shifts of the Higgs fields are necessary to realize the gauge-independent renormalization of tan β.

本文言語English
ページ(範囲)174-178
ページ数5
ジャーナルPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
530
1-4
DOI
出版ステータスPublished - 2002 3 28

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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