= Description

This is the model present by default in MG5_aMC from version 1.4.0 to 2.4.3.
The model is actually SLHA2 but came with an internal support in MG5_aMC to handle SLHA1.
Therefore, the user card is SLHA1.

Version 2.5.0 introducing Py8 and since PY8 supports SLHA2, the model was replaced by MSSM_SLHA2
where everything is SLHA2 from beginning to end.

[https://cp3.irmp.ucl.ac.be/projects/madgraph/attachment/wiki/Models/MSSM_SLHA1/mssm_slha1.tgz Link to the model.]
Note that this model need to keep his name "mssm" for the SLHA1 interface to work.