Simulating the High Energy Gamma-ray sky seen by the GLAST Large Area   Telescope
  This paper presents the simulation of the GLAST high energy gamma-ray telescope. The simulation package, written in C++, is based on the Geant4 toolkit, and it is integrated into a general framework used to process events. A detailed simulation of the electronic signals inside Silicon detectors has been provided and it is used for the particle tracking, which is handled by a dedicated software. A unique repository for the geometrical description of the detector has been realized using the XML language and a C++ library to access this information has been designed and implemented. A new event display based on the HepRep protocol was implemented. The full simulation was used to simulate a full week of GLAST high energy gamma-ray observations. This paper outlines the contribution developed by the Italian GLAST software group. 
F. Longo, P. Azzi, D. Bastieri, G. Busetto, Y. Lei, R. Rando, O.   Tibolla, L. Baldini, M. Kuss, L. Latronico, N. Omodei, M....