# Deciphering the MSSM Higgs Mass at Future Hadron Colliders

## TL;DR

Future 100 TeV hadron colliders could precisely measure supersymmetric particle properties to determine if the MSSM explains the 125 GeV Higgs mass, testing for physics beyond the MSSM.

## Contribution

This work assesses the potential of future colliders to infer MSSM parameters through precision measurements, focusing on the mini-split regime at 100 TeV.

## Key findings

- High production rates of gluinos and electroweakinos enable detailed property measurements.
- Precision measurements can constrain scalar masses and $ an eta$ to test MSSM validity.
- Complementary probes include dark matter detection and Higgs physics.

## Abstract

Future hadron colliders will have a remarkable capacity to discover massive new particles, but their capabilities for precision measurements of couplings that can reveal underlying mechanisms have received less study. In this work we study the capability of future hadron colliders to shed light on a precise, focused question: is the higgs mass of 125 GeV explained by the MSSM? If supersymmetry is realized near the TeV scale, a future hadron collider could produce huge numbers of gluinos and electroweakinos. We explore whether precision measurements of their properties could allow inference of the scalar masses and $\tan \beta$ with sufficient accuracy to test whether physics beyond the MSSM is needed to explain the higgs mass. We also discuss dark matter direct detection and precision higgs physics as complementary probes of $\tan \beta$. For concreteness, we focus on the mini-split regime of MSSM parameter space at a 100 TeV $pp$ collider, with scalar masses ranging from 10s to about 1000 TeV.