New application of the mass-dependent analysis for renormalization group equation to extended Higgs models

Author:

Shinya Kanemura, Yushi Mura

Keyword:

High Energy Physics - Phenomenology, High Energy Physics - Phenomenology (hep-ph)

journal:

OU-HET-1207

date:

2023-10-23 16:00:00

Abstract

We discuss at the first time ultraviolet behaviors of effective coupling constants using renormalization group equations with mass dependent beta functions in extended Higgs models, in which the scalar coupling constants may blow up at a scale much below the Planck scale. It is important to precisely evaluate such a scale as the upper bound where the models can hold. We find that by the natural treatment of the threshold in our method the upper bound in extended Higgs models can be much higher than that obtained by using the mass independent beta function, especially when such an upper bound is relatively low.