Structure of S and T Parameters in Gauge-Higgs Unification

Abstract

We investigate the divergence structure of one-loop corrections to S and T parameteres in gauge-Higgs unification. We show that these parameters are finite in five dimensions, but divergent in more than six dimensions. Remarkably, a particular linear combination of S and T parameters becomes finite in six dimension case, which is indicated from the operator analysis in a model independent way. Talk given at 2006 International Workshop SCGT 06 ”Origin of Mass and Strong Coupling Gauge Theories” 21-24 November 2006, Nagoya, Japan. e-mail: lim@kobe-u.ac.jp e-mail: maru@people.kobe-u.ac.jp, Speaker. This talk is based on [1].

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