The Lightest Higgs Boson Mass in the MSSM with Strongly Interacting Spectators

TL;DR

This paper introduces a novel mechanism within the MSSM where coupling the Higgs to a strongly interacting sector near the conformal window naturally achieves a Higgs mass around 125 GeV, addressing the mass without excessive fine-tuning.

Contribution

It presents a new approach coupling the MSSM Higgs to a strongly interacting conformal sector to naturally generate the correct Higgs mass and related parameters.

Findings

Large corrections to Higgs quartic coupling achieved

Strong sector generates the μ-term naturally

Couplings driven to an infrared fixed point

Abstract

We propose a new mechanism for producing a Higgs boson mass near 125 GeV within the MSSM. By coupling the MSSM Higgs boson to a set of strongly interacting fields, large corrections to the Higgs quartic coupling are induced. Although the Higgs doublets do not participate in the strong dynamics, they feel the effects of the strongly coupled sector via (semi-)perturbative interactions. These same strong dynamics are also capable of generating the $\mu$-term. Additionally, this strong sector is in the conformal window, which drives the couplings to an infrared fixed point and naturally generates model parameters of the appropriate size.