StSsdSimulationMaker
   --St_sls_Maker
   --St_spa_Maker
   --StSsdEmbeddingMaker

Use bfc chain to do SSD Slow Simulation

root4star -b -q 'bfc.C(1,1000,"dev14,AgML,ITTF,Sti,tpcI,-StiRnD,-PixelIT,TpcFastSim,-pxlFastSim,ssd,VFMCE,Mc
Event,geant,IdTruth,fzin,NoSvtIt,NoSsdIt,-StiPulls,Bana,-tags,clearmem,evout,McEvOut,MiniMcMk,McAna,MakeEven
t","dev14_1track_1000events.fz")' 

St_geant_Maker
http://www.star.bnl.gov/webdata/dox/html/St__geant__Maker_8cxx_source.html
//------------------------
Because of we used "geant" option in bfc chain , this St_geant_Maker will created MC hit info.
www.star.bnl.gov/webdata/dox/html/St__geant__Maker_8cxx_source.html

Simulation routine
1>Read MC hit info

2>Charge sharing
drupal.star.bnl.gov/STAR/blog-entry/bouchet/2008/may/19/simulation-charge-sharing