Higher-Order Contributions in Higgs Sectors of Supersymmetric Models

TL;DR

This paper improves the theoretical prediction of the Higgs boson mass in supersymmetric models by combining Feynman diagrammatic and renormalization group methods, aiding in constraining model parameters.

Contribution

It introduces a combined approach that enhances Higgs mass predictions at higher superpartner mass scales in supersymmetric theories.

Findings

Improved Higgs mass prediction accuracy for large superpartner masses.

Enhanced theoretical tools for constraining supersymmetric model parameters.

Better agreement with experimental Higgs mass measurements.

Abstract

In 2012, the discovery of a particle compatible with a Higgs boson of a mass of roughly 125 GeV was announced. This great success is now being followed by the identification of the nature of this particle and the particle's properties are being measured. One of these properties is the Higgs boson mass which is already known very precisely with an experimental uncertainty of below 1 GeV. In some extensions of the Standard Model, like in supersymmetric extensions, the Higgs boson mass can be predicted and hence, the measured mass constrains the parameters of the model. For a full exploitation of this constraint, a precise theoretical prediction is needed. The presented combination of the results obtained by the Feynman diagrammatic approach and the renormalization group equation approach improves the known Higgs mass prediction for larger mass scales of the superpartner particles.