Reconciling EFT and hybrid calculations of the light MSSM Higgs-boson mass

Understand

Various methods are used in the literature for predicting the lightest CP-even Higgs boson mass in the Minimal Supersymmetric Standard Model (MSSM).

• Fixed-order diagrammatic calculations capture all effects at a given order and yield accurate results for scales of supersymmetric (SUSY) particles that are not separated too much from the weak scale.
• Effective field theory calculations allow a resummation of large logarithmic contributions up to all orders and therefore yield accurate results for a high SUSY scale.
• A hybrid approach, where both methods have been combined, is implemented in the computer code FeynHiggs.