Unified interpretation of scalegenesis in conformally extended standard models: a dynamical origin of Higgs portal * * Supported in part by the National Science Foundation of China (NSFC) (11747308), the Seeds Funding of Jilin University (S.M.). H.I. and R.O. thank for the hospitality of Center for Theoretical Physics and College of Physics, Jilin University where the present work has been

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We present a universal interpretation of a class of conformal extended standard models that include Higgs portal interactions as realized in low-energy effective theories. The scale generation mechanism in this class (scalegenesis) arises along the (nearly) conformal/flat direction for breaking scale symmetry, where the electroweak symmetry-breaking structure arises similarly as in the standard model. A dynamical origin for the Higgs portal coupling can provide the discriminator for the low-energy “universality class,” to be probed in forthcoming collider experiments.