Setting up SPheno.m
For the SPheno output of SARAH, an additional input file is needed, to define the properties of the generated SPheno version. This file must be located in the same directory as the other input files of the current model and is called by default SPheno.m
. The following properties can be defined via this file:
-
The choice between a Low or High scale SPheno version via
OnlyLowEnergySPheno=True/False;
-
Input parameters of SPheno via
MINPAR={...};
MINPAR={...};
LHInput[x]
-
Boundary conditions via
BoundaryLowScaleInput={...};
BoundaryEWSBScale={...};
BoundarySUSYScale={...};
BoundaryHighScale={...};
BoundaryEWSBScaleRunningDown={...}
-
Handling of Tadpoles with SPheno via
ParametersToSolveTadpoles={...};
ParametersToSolveTadpolesLowScaleInput={...};
-
GUT scale condition in SPheno via
ConditionGUTscale = x==y;
-
The renormalisation scale in SPheno via
RenormalizationScaleFirstGuess = x;
RenormalizationScale = x;
-
More precise mass spectrum calculation via
QuadruplePrecision={...};
-
List of decaying particles via
ListDecayParticles = {...} / Automatic;
ListDecayParticles3B = {...} / Automatic;
-
The parameters to calculate the Fine-Tuning in SPheno
-
FineTuningParameters={...}
together withIncludeFineTuning = True;
-
-
Possible flags to turn on/off different features in the SPheno output:
Use2LoopFromLiterature = True/False;
FlagLoopContributions = True/False;
NeglectLoopsInvolving = {...}
-
List of auxiliary parameters via
AuxiliaryParametersSPheno={...};
-
Initialisation values of parameters in SPheno
InitializationValues = {...};
- Some options to deal with models which extended gauge sectors or additional Higgs doublets
-
Models with another gauge group at the SUSY scale via
-
ExpressionAuxHypercharge = function;
together withAuxiliaryHyperchargeCoupling = True;
-
-
Models with several generations of Higgs doublets via
DEFINITION[MoreEWvevs]={...};
DEFINITION[UseNonStandardYukwas]=True/False;
DEFINITION[NonStandardYukawas]={...};
DEFINITION[NonStandardVEVs1L]={...};
DEFINITION[NonStandardVEVs1Lrelations]={...}
-
Models with another gauge group at the SUSY scale via