Dynamical Electroweak Symmetry Breaking with a heavy fermion in light of recent LHC results

TL;DR

This paper reviews a scenario where a heavy fourth-generation fermion-antifermion condensate could explain electroweak symmetry breaking, offering an alternative to the Standard Model Higgs mechanism in light of recent LHC findings.

Contribution

It introduces the idea that a heavy fourth generation could form a condensate that breaks electroweak symmetry, providing a novel perspective on Higgs physics.

Findings

Heavy fermion condensate can induce electroweak symmetry breaking.

This scenario addresses the hierarchy problem with a new physics scale around 1 TeV.

It aligns with recent LHC results suggesting a Higgs-like particle.

Abstract

The recent announcement of a discovery of a possible Higgs-like particle -its spin and parity is yet to be determined- at the LHC with a mass of 126 GeV necessitates a fresh look at the nature of the electroweak symmetry breaking, in particular if this newly-discovered particle will turn out to have the quantum numbers of a Standard Model Higgs boson. Even if it were a $0^+$ scalar with the properties expected for a SM Higgs boson, there is still the quintessential hierarchy problem that one has to deal with and which, by itself, suggests a new physics energy scale around 1 TeV. This article presents a mini-review of one possible scenario: The formation of a fermion-antifermion condensate coming from a very heavy fourth generation and carrying the quantum number of the the SM Higgs field and thus breaking the electroweak symmetry.