Two-Loop Higgs mass calculations in supersymmetric models beyond the MSSM with SARAH and SPheno

TL;DR

This paper introduces an extension to the SARAH package enabling two-loop Higgs mass calculations in diverse supersymmetric models beyond the MSSM, using the effective potential approach and generating Fortran code for SPheno.

Contribution

It provides a novel extension to SARAH for precise two-loop Higgs mass calculations in complex SUSY models beyond the MSSM.

Findings

Allows Higgs mass prediction in complex SUSY models with MSSM-level precision.

Includes all relevant two-loop corrections independent of electroweak gauge couplings.

Generates Fortran code for SPheno for numerical evaluation.

Abstract

We present an extension to the Mathematica package SARAH which allows for Higgs mass calculations at the two-loop level in a wide range of supersymmetric models beyond the MSSM. These calculations are based on the effective potential approach and include all two-loop corrections which are independent of electroweak gauge couplings. For the numerical evaluation Fortran code for SPheno is generated by SARAH. This allows the prediction of the Higgs mass in more complicated SUSY models with the same precision that most state-of-the-art spectrum generators provide for the MSSM.