Higgs boson mass in supersymmetry to three loops

TL;DR

This paper calculates the Higgs boson mass in supersymmetry to three-loop precision, including NNLO effects, with results relevant for LHC measurements.

Contribution

It provides the first three-loop calculation of the Higgs mass in the MSSM considering different supersymmetric mass hierarchies.

Findings

Corrections of about 500 MeV to the Higgs mass

Results comparable to expected LHC experimental accuracy

Highlights importance of higher-order effects in supersymmetric predictions

Abstract

Within the minimal supersymmetric extension of the Standard Model, the mass of the light CP-even Higgs boson is computed to three-loop accuracy, taking into account the next-to-next-to-leading order effects from supersymmetric Quantum Chromodynamics. We consider two different scenarios for the mass hierarchies of the supersymmetric spectrum. Our numerical results amount to corrections of about 500 MeV which is of the same order as the experimental accuracy expected at the CERN Large Hadron Collider (LHC).