Combined Constraints on Holographic Bosonic Technicolor

TL;DR

This paper explores a holographic model of strong electroweak symmetry breaking with a composite scalar, analyzing constraints from unitarity, the S parameter, and Higgs mass to identify viable parameter space and potential LHC signals.

Contribution

It introduces a novel holographic model of bosonic technicolor with a composite scalar, distinct from scaled QCD, and assesses its phenomenological viability.

Findings

Limited parameter space consistent with constraints

Model predicts specific signatures for LHC detection

Holographic approach provides new insights into strong EWSB

Abstract

We consider a model of strong electroweak symmetry breaking in which the expectation value of an additional, possibly composite, scalar field is responsible for the generation of fermion masses. The dynamics of the strongly coupled sector is defined and studied via its holographic dual, and does not correspond to a simple, scaled-up version of QCD. We consider the bounds from perturbative unitarity, the S parameter, and the mass of the Higgs-like scalar. We show that the combination of these constraints leaves a relatively limited region of parameter space viable, and suggests the qualitative features of the model that might be probed at the LHC.