New theories for the Fermi scale

TL;DR

This paper reviews recent theoretical models addressing the Fermi scale, including supersymmetry, Little Higgs, holographic composite Higgs, and 5D Higgsless models, to explain electroweak symmetry breaking and unitarization.

Contribution

It introduces and compares various new models of physics at the Fermi scale, expanding beyond the Standard Model to address electroweak symmetry breaking.

Findings

Different models offer distinct mechanisms for electroweak symmetry breaking.

Models provide potential solutions to unitarity in gauge boson scattering.

Theoretical frameworks suggest new physics at the Fermi scale.

Abstract

Electroweak interactions need three Nambu-Goldstone bosons to provide a mass to the W and the Z gauge bosons but they also need an ultra-violet moderator or new physics to unitarize the gauge boson scattering amplitudes. In this talk, I will present various recent models of physics at the Fermi scale: several deformations of the Minimal Supersymmetric Standard Model, Little Higgs models, holographic composite Higgs models, 5D Higgsless models.