Comparison of Point Cloud and Image-based Models for Calorimeter Fast Simulation

A highly granular calorimeter, similar to CALICE is simulated in Geant4. The calorimeters showers are represented as either images or point clouds. Two state-of-the-art score based diffusion models, on image based and the other point cloud based, are trained on the same set of calorimeter simulations and directly compared to each other. These files include the original Geant4 simulation, an intermediate form of the data required for training, and the samples generated by the image and point cloud models