A Quirky Little Higgs Model

TL;DR

This paper introduces a novel little Higgs model with uncolored top quirks and unique collider signatures, addressing the Higgs mass divergence problem through extra dimensions and bulk gauge symmetries.

Contribution

It proposes a new extra dimensional little Higgs model featuring uncolored top quirks and distinctive collider signatures, expanding beyond traditional top partner frameworks.

Findings

Model cancels top loop divergence via uncolored quirks

Predicts macroscopic string signatures at LHC

Compatible with electroweak precision tests

Abstract

We consider an extra dimensional model where the quadratically divergent top loop contribution to the Higgs mass is cancelled by an uncolored heavy "top quirk" charged under a different SU(3) gauge group. The cancellation is enforced by bulk gauge symmetries. Thus we have an unusual type of little Higgs model which has some quirky signatures. The top partner in this model could be identified at the Large Hadron Collider due to macroscopic strings that connect quirk and anti-quirks. The model can undergo radiative electroweak symmetry breaking and is consistent with precision electroweak measurements.