Study of the interactions of pions in the CALICE silicon-tungsten calorimeter prototype

A prototype silicon-tungsten electromagnetic calorimeterfor an ILC detector was tested in 2007 at the CERN SPS test beam. Data were collected with electron and hadron beams in the energy range 8 to 80 GeV. The analysis described here focuses on the interactions of pionsin the calorimeter. One of the main objectives of the CALICEprogram is to validate the Monte Carlo tools available for the design of a full-sized detector. The interactions of pionsin the Si-W calorimeterare therefore confronted with the predictions of various physical models implemented in the GEANT4 simulation framework.