Full LCD detector simulation with GISMO

We present a status update of a full simulation package using GISMO 1 . This package is a functioning tool producing simulation data for the two standard LCD detector designs, in a framework allowing easy changes to the detector designs. The simulation engine, GISMO, is separated from the application code, GISMOAPPS, to allow for a future upgrade to GEANT4 within the same framework. WHY DO FULL SIMULATION? The vast majority of analyses presented at this workshop use "fast simulations" with parameters describing particle interactions, detector response and event reconstruction. However, for detailed detector comparisons, reconstruction algorithm development, and beam background studies a full simulation package is needed. The full simulation includes physics effects (dE/dx, production of secondaries, decays in flight, etc.) and detector effects (cracks and edges) not reproduced in fast simulations. These effects may also severely impact clustering and track finding algorithms in complex events. Even in analyses using the fast simulation, to realistically determine the parameters the full simulation is required.