Comparison of CALOR89 model predictions with scintillator plate calorimeter data

Abstract

The CALOR code system has been recently revised by adding a high energy collision model for energies ≥ 5 GeV. This version is called as CALOR89. Calculations with this version have been carried out and compared with experimental data from four test beam scintillator plate calorimeter configurations. The agreement is good within the systematics. The limiting uncertainty in CALOR simulation at 10 GeV is the choice of collision model. We have addressed this uncertainty by appealing to the experimental data and determined that by a careful transition from the Intranuclear Cascade model to the FLUKA model this can be reduced to 1.5%. The other mostly mechanical effects such as cladding, scintillator saturation, shower integration time and shower containment can each produce systematic shifts as much as 4%. However, careful modeling of the experimental configuration should allow the systematic effects from each of these to be minimised to 1%. We find that an overall systematic uncertainty of 2.5% in the model predictions may then be achieved.