Two Higgs Doublet Model from Six Dimensional Gauge Theory

Fuente: arXiv
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Main Authors: Akamatsu, Kento, Hirose, Takuya, Maru, Nobuhito, Nago, Akio
Format: Preprint
Published: 2026
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author Akamatsu, Kento
Hirose, Takuya
Maru, Nobuhito
Nago, Akio
author_facet Akamatsu, Kento
Hirose, Takuya
Maru, Nobuhito
Nago, Akio
contents We improve our previously proposed two Higgs doublet model of six-dimensional $SU(4)$ gauge theory compactified on an orbifold $T^2/Z_2$ by introducing the brane localized gauge kinetic terms. Since two Higgs doublets are identified with massless zero modes in extra spatial components of the six-dimensional gauge field, the Higgs sector in our model is constrained by the six-dimensional gauge symmetry. As a result, our Higgs potential at tree-level is automatically CP conserving and $Z_2$ symmetric, which are assumed by hand in the ordinary two Higgs doublet models. The scalar masses breaking the $Z_2$ symmetry softly are generated at one-loop. We show that the Standard Model Higgs mass can be obtained by tuning the size of the brane localized gauge kinetic terms as well as the electroweak symmetry breaking is realized. Other physical Higgs masses are predicted.
format Preprint
id arxiv_https___arxiv_org_abs_2603_05857
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Two Higgs Doublet Model from Six Dimensional Gauge Theory
Akamatsu, Kento
Hirose, Takuya
Maru, Nobuhito
Nago, Akio
High Energy Physics - Phenomenology
High Energy Physics - Theory
We improve our previously proposed two Higgs doublet model of six-dimensional $SU(4)$ gauge theory compactified on an orbifold $T^2/Z_2$ by introducing the brane localized gauge kinetic terms. Since two Higgs doublets are identified with massless zero modes in extra spatial components of the six-dimensional gauge field, the Higgs sector in our model is constrained by the six-dimensional gauge symmetry. As a result, our Higgs potential at tree-level is automatically CP conserving and $Z_2$ symmetric, which are assumed by hand in the ordinary two Higgs doublet models. The scalar masses breaking the $Z_2$ symmetry softly are generated at one-loop. We show that the Standard Model Higgs mass can be obtained by tuning the size of the brane localized gauge kinetic terms as well as the electroweak symmetry breaking is realized. Other physical Higgs masses are predicted.
title Two Higgs Doublet Model from Six Dimensional Gauge Theory
topic High Energy Physics - Phenomenology
High Energy Physics - Theory
url https://arxiv.org/abs/2603.05857