The Top Triangle Moose: Combining Higgsless and Topcolor Mechanisms for Mass Generation

TL;DR

This paper introduces a deconstructed model combining Higgsless and top-color mechanisms to generate fermion masses, reducing tension in Higgsless models and predicting observable heavy fermions at the LHC.

Contribution

It proposes a novel model that integrates Higgsless and top-color mechanisms, enabling light heavy fermions and addressing mass generation challenges.

Findings

Heavy fermions can be light enough for LHC detection.

The model alleviates tension between top mass and electroweak precision.

Broad parameter range for discoverability at the LHC.

Abstract

We present the details of a deconstructed model that incorporates both Higgsless and top-color mechanisms. The model alleviates the tension between obtaining the correct top quark mass and keeping Delta rho small that exists in many Higgsless models. It does so by singling out the top quark mass generation as arising from a Yukawa coupling to an effective top-Higgs which develops a small vacuum expectation value, while electroweak symmetry breaking results largely from a Higgsless mechanism. As a result, the heavy partners of the standard model fermions can be light enough to be seen at the LHC. After presenting the model, we detail the phenomenology, showing that for a broad range of masses, these heavy fermions are discoverable at the LHC.