Minimal Non-Abelian Supersymmetric Twin Higgs

TL;DR

This paper introduces a minimal supersymmetric Twin Higgs model with a new SU(2)_X gauge symmetry, achieving less than 10% tuning of the electroweak scale with heavy stops and high-scale supersymmetry breaking, while remaining perturbative up to the Planck scale.

Contribution

It presents a novel minimal supersymmetric Twin Higgs framework incorporating an SU(2)_X gauge symmetry to improve tuning and perturbativity.

Findings

Achieves electroweak tuning better than 10% with heavy stops.

Maintains perturbativity up to the Planck scale.

Reduces top Yukawa coupling at high energies.

Abstract

We propose a minimal supersymmetric Twin Higgs model that can accommodate tuning of the electroweak scale for heavy stops better than 10% with high mediation scales of supersymmetry breaking. A crucial ingredient of this model is a new SU(2)_X gauge symmetry which provides a D-term potential that generates a large SU(4) invariant coupling for the Higgs sector and only small set of particles charged under SU(2)_X, which allows the model to be perturbative around the Planck scale. The new gauge interaction drives the top yukawa coupling small at higher energy scales, which also reduces the tuning.