Speaker
Description
A highly compact and finely segmented silicon–tungsten electromagnetic calorimeter prototype was tested with electron beams at DESY. The detector consists of thin silicon sensor layers interleaved with tungsten absorbers, providing high granularity and a compact shower development.
The calorimeter performance is studied using electron test-beam data at energies between 1 and 5 GeV and compared with a detailed Geant4 simulation of the experimental setup. The analysis focuses on the calorimetric response, including energy linearity and resolution, as well as the longitudinal development of electromagnetic showers as a function of the incident electron energy. Additional observables characterising the shower development are used to assess the agreement between data and Monte Carlo simulation.
The results provide a validation of the detector simulation and demonstrate the performance of the compact silicon–tungsten calorimeter concept relevant for future high-granularity electromagnetic calorimeters.