Simulation studies of the electromagnetic energy resolution of scintillating fibre calorimeter

Using a Monte Carlo code based on the GEANT package the energy resolution of a scintillating fibre calorimeter was investigated as a function of the volume ratio of passive (absorber) to active (fibres) material, fibre radius, light reflection coefficient at fibre end, fibre transparency, and incident particle tilt angle. The obtained MC results were confronted with the existing experimental data. Good agreement between the simulation and experiment was found in most cases. A simple formula describing the stochastic term of the energy resolution as a function of the calorimeter basic parameters has been found.