Dynamical Electroweak Symmetry Breaking with a Heavy Fourth Generation

TL;DR

This paper explores how a heavy fourth generation of particles could induce electroweak symmetry breaking dynamically via condensate formation, involving multiple Higgs doublets and near-scale symmetry restoration.

Contribution

It introduces a model where a heavy fourth generation triggers dynamical symmetry breaking with multiple Higgs doublets, analyzed through Schwinger-Dyson equations.

Findings

Presence of three Higgs doublets (two composite, one fundamental)

Dynamical symmetry breaking near scale symmetry restoration

Implications for phenomenology of heavy fourth generation

Abstract

A heavy fourth generation with a mass of the order of 400 GeV or more could trigger dynamical electroweak symmetry breaking by forming condensates through the exchange of a fundamental Higgs scalar doublet. The dynamics leading to these condensates is studied within the framework of the Schwinger-Dyson equation. This scenario leads to the presence of {\em three} (two composite and one fundamental) Higgs doublets, with interesting phenomenological implications. In addition, this dynamical phenomenon occurs in the vicinity of the energy scale where the restoration of scale symmetry might happen.