SARAH 3.2: Dirac Gauginos, UFO output, and more

TL;DR

SARAH 3.2 is a Mathematica package that streamlines the definition, analysis, and generation of model files for supersymmetric theories, now supporting Dirac gauginos, UFO format, and improved spectrum calculations.

Contribution

The new version introduces support for Dirac gauginos, UFO output format, and enhanced spectrum generator creation, expanding SARAH's capabilities for model analysis.

Findings

Supports Dirac Gauginos in model implementations

Enables creation of UFO format model files for MadGraph 5 and others

Improves spectrum generator and model consistency checks

Abstract

SARAH is a Mathematica package optimized for the fast, efficient and precise study of supersymmetric models beyond the MSSM: a new model can be defined in a short form and all vertices are derived. This allows SARAH to create model files for FeynArts/FormCalc, CalcHep/CompHep and WHIZARD/OMEGA. The newest version of SARAH now provides the possibility to create model files in the UFO format which is supported by MadGraph 5, MadAnalysis, GoSam, and soon by Herwig++. Furthermore, SARAH also calculates the mass matrices, RGEs and one-loop corrections to the mass spectrum. This information is used to write source code for SPheno in order to create a precision spectrum generator for the given model. This spectrum-generator-generator functionality as well as the output of WHIZARD and CalcHep model files have seen further improvement in this version. Also models including Dirac Gauginos are supported with the new version of SARAH, and additional checks for the consistency of model implementations have been created.