Main Model File

General

The main model file is the most important piece of information about an implemented model SARAH: it contains all information about the particle content, the local and global symmetries, and about the interactions.

Head of the model file

At the very beginning of a model file, some additional information about the model implementation can be given: what’s the name of the model (in LaTeX syntax as well as string without any special character), who is the author of the model file and when was the last change:

Model`Name = "BLSSM";
Model`NameLaTeX ="B-L-SSM";
Model`Authors = "L.Basso, F.Staub";
Model`Date = "2012-09-01";

Definition needed for the gauge eigenstates

1. Global symmetrie are defined in an array Global, see Global Symmetries SUSY and Global Symmetries non-SUSY
   Global[[/1|1]] = {...

2. Gauge structure of the model given by the vector superfields, see Gauge Symmetries non-SUSY and Gauge Symmetries SUSY
   Gauge[[/1|1]] = {...

3. Matter content given by either chiral superfields, see Particle Content SUSY
   SuperFields[[/1|1]] = { ...
   or fermion and scalar fields for non-SUSY models, see Particle Content non-SUSY

FermionFields[[/1|1]] = { ...
ScalarFields[[/1|1]] = { ...

4. Superpotential, see Superpotential
   SuperPotential = ...
   or the Potential, see Potential
   DEFINITION[$EIGENSTATES][LagrangianInput] = { ...

Definition of the different eigenstates

Names for the different eigenstates, see Different sets of eigenstates

NameOfStates = { ...

Definition of the properties of all eigenstates

1. Vacuum expectation values, see VEVs
   DEFINITION[$EIGENSTATES][VEVs]= { ...

2. Rotations in the gauge sector, see Rotations in gauge sector
   DEFINITION[$EIGENSTATES][GaugeSector]= { ...

3. Expansion of flavors, see Flavour Decomposition
   DEFINITION[$EIGENSTATES][Flavors]= { ...

4. Rotations in the matter sector, see Rotations in matter sector
   DEFINITION[$EIGENSTATES][MatterSector]= { ...

5. Gauge fixing terms: since version 3.1 no longer needed as input, see Gauge fixing

6. Additional couplings or redefinition of existing couplings, see Additional terms in Lagrangian
   DEFINITION[$EIGENSTATES][Additional]= { ...

7. Definition of Dirac spinors, see Dirac Spinors
   DEFINITION[$EIGENSTATES][DiracSpinors]= { ...

Additional information

1. Flags to switch on/off different parts of the Lagrangian
   • Options for SUSY Models
   • Options for non-SUSY Models
2. Deleting particles, see Delete Particles
   DeleteParticles[[/1|1]] = { ...