# Improved determination of the Higgs mass in the MSSM with heavy superpartners

## TL;DR

This paper advances the calculation of the Higgs mass in the MSSM with heavy superpartners by computing two-loop threshold corrections and analyzing dimension-six operators, leading to more precise predictions.

## Contribution

It provides the first comprehensive calculation of dominant two-loop threshold corrections and assesses the impact of dimension-six operators on Higgs mass predictions in heavy MSSM scenarios.

## Key findings

- Enhanced accuracy in Higgs mass predictions.
- Quantified effects of dimension-six operators.
- Reduced theoretical uncertainties in MSSM Higgs calculations.

## Abstract

We present several advances in the effective field theory calculation of the Higgs mass in MSSM scenarios with heavy superparticles. In particular, we compute the dominant two-loop threshold corrections to the quartic Higgs coupling for generic values of the relevant SUSY-breaking parameters, including all contributions controlled by the strong gauge coupling and by the third-family Yukawa couplings. We also study the effects of a representative subset of dimension-six operators in the effective theory valid below the SUSY scale. Our results will allow for an improved determination of the Higgs mass and of the associated theoretical uncertainty.