Decoupling Dynamical Electroweak Symmetry Breaking

TL;DR

This paper discusses models of dynamical electroweak symmetry breaking, like top-see-saw and flavor universal models, that align with precision data and evade current experimental constraints.

Contribution

It introduces specific models that achieve dynamical symmetry breaking with a decoupling limit, compatible with existing precision measurements and collider searches.

Findings

Models can break electroweak symmetry dynamically with a decoupling limit.

Constraints on new physics scale are derived from Tevatron data.

These models remain viable despite precision data constraints.

Abstract

The modern precision accelerator data has essentially ruled out the most obvious model of dynamical electroweak symmetry breaking, technicolour. The idea is though well motivated and it is important to construct models compatible with the precision data of this ilk to motivate experimental searches. We describe the top-see-saw and flavour universal symmetry breaking models that break electroweak symmetry dynamically yet have a decoupling limit for all new physics. Limits on the scale of such new physics may be placed using precision data and direct search results from the Tevatron.