Dual technicolor with hidden local symmetry

TL;DR

This paper explores a dual description of technicolor-like theories using D-brane configurations, constructing an effective model that accounts for particle spectra and corrections to electroweak parameters.

Contribution

It introduces a truncated effective model based on D4/D8 brane configurations that incorporates hidden local symmetry and analyzes mixing effects on electroweak parameters.

Findings

Identification of particle spectrum with Kaluza-Klein modes

Reduction of oblique parameters due to gauge boson mixing

Effective model valid below a specific cut-off

Abstract

We consider a dual description of the technicolor-like gauge theory within the D4/D8 brane configuration with varying confinement and elecroweak symmetry breaking scales. Constructing an effective truncated model valid below a certain cut-off, we identify the particle spectrum with Kaluza-Klein modes of the model in a manner consistent with the hidden local symmetry. Integrating out heavy states, we find that the low-energy action receives nontrivial corrections stemming from the mixing between Standard Model and heavy gauge bosons which results in reduction of oblique parameters.