Simulation Studies of a Total Absorption Dual Readout Calorimeter

We have created a flexible, easy to use simulation framework based on GEANT 4 to perform detailed simulations of a crystal based total absorption calorimeter with dual readout. The correction to the observed scintillation signal can be determined by comparison of the scintillation signal with the beam energy as a function of the Cerenkov-to-scintillation C/S ratio. In this article we describe the features of the software we developed and show results for various crystal materials and physics lists. We show that applying an energy-independent correction results in an energy resolution of ≈ 10%/√E for single π−.