On the Higgs Mass and Perturbativity

TL;DR

This paper introduces the Adjoint MSSM, a simple extension of the MSSM that naturally predicts a 125 GeV Higgs mass with perturbative parameters up to the GUT scale and suggests new TeV-scale colored particles.

Contribution

The paper proposes the Adjoint MSSM, a novel model that modifies the Higgs mass at tree-level, avoiding heavy stops and large mixing, while maintaining perturbativity up to high scales.

Findings

Achieves Higgs mass around 125 GeV without heavy stops

Predicts new colored particles at TeV scale

Maintains perturbativity up to GUT scale

Abstract

The predictions for the Higgs mass in extensions of the Minimal Supersymmetric Standard Model are discussed. We propose a simple theory where the Higgs mass is modified at tree-level and one can achieve a mass around 125 GeV without assuming heavy stops or large left-right mixing in the stop sector. All the parameters in the theory can be perturbative up to the grand unified scale, and one predicts the existence of new colored fields at the TeV scale. We refer to this model as Adjoint MSSM. We discuss the main phenomenological aspects of this scenario and the possible signatures at the Large Hadron Collider.