Twin Turtles

TL;DR

The paper introduces the 'Twin Turtle' model, an extension of the Twin Higgs framework where the radial mode is a pseudo-Goldstone boson, leading to distinctive Higgs sector signatures and higher new particle scales.

Contribution

It proposes a novel 'Twin Turtle' structure with a pseudo-Goldstone radial mode, explores its phenomenology, and demonstrates its robustness in supersymmetric completions.

Findings

Multiple Higgs-like scalars as signatures of naturalness

Higher scale of new colored particles

Introduction of a new mechanism for twin symmetry-breaking quartics

Abstract

We present an ultraviolet extension of the Twin Higgs in which the radial mode of twin symmetry breaking is itself a pseudo-goldstone boson. This "turtle" structure raises the scale of new colored particles in exchange for additional states in the Higgs sector, making multiple Higgs-like scalars the definitive signature of naturalness in this context. We explore the parametrics and phenomenology of a concrete Twin Turtle model and demonstrate its robustness in two different supersymmetric completions. Along the way, we also introduce a new mechanism for inducing hard twin symmetry-breaking quartics via soft supersymmetry breaking.