The Higgs properties in the MSSM after the LHC Run-2

TL;DR

This paper analyzes the MSSM parameter space after LHC Run-2, showing that current data constrains Higgs properties further, with gauge couplings approaching SM values but Yukawa couplings still differing significantly.

Contribution

It provides a comprehensive scan of the MSSM parameter space incorporating latest experimental constraints, highlighting the impact of Run-2 data on Higgs properties.

Findings

Gauge couplings of the Higgs approach SM values below 0.1% deviation.

Yukawa couplings $hb\bar{b}$ and $h\tau\bar\tau$ can differ by tens of percent from SM.

Run-2 data excludes additional regions of MSSM parameter space.

Abstract

We scrutinize the parameter space of the SM-like Higgs boson in the minimal supersymmetric standard model (MSSM) under current experimental constraints. The constraints are from (i) the precison electroweak data and various flavor observables; (ii) the direct 22 separate ATLAS searches in Run-1; (iii) the latest LHC Run-2 Higgs data and tri-lepton search of electroweakinos. We perform a scan over the parameter space and find that the Run-2 data can further exclude a part of parameter space. For the property of the SM-like Higgs boson, its gauge couplings further approach to the SM values with a deviation below 0.1\%, while its Yukawa couplings $hb\bar{b}$ and $h\tau\bar\tau$ can still sizably differ from the SM predictions by several tens percent.