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T: Fachverband Teilchenphysik

T 46: Calorimeter / Detector Systems II

T 46.2: Talk

Tuesday, March 21, 2023, 17:15–17:30, WIL/C133

Data-driven Fast Calorimeter Simulation with the CALICE AHCAL Prototype — •Julian Utehs, André Wilhahn, and Stan Lai for the CALICE-D collaboration — II. Physikalisches Institut, Georg-August-Universität Göttingen

High granularity calorimeters are foreseen to be an integral part of future particle physics detectors, for instance in detectors at a future e⁺e⁻ collider. Therefore, there is an extensive research program dedicated to understanding how high granularity calorimeters can be exploited. For this purpose, the CALICE collaboration has developed a prototype, the Analog Hadron Calorimeter, which uses SiPM technology to read out highly granular scintillator tiles. The combination of highly granular calorimetry with a foreseeable higher luminosity will significantly increase the calculation time for MC simulations that simulate all particle interactions with the calorimeter material (as in GEANT4). Therefore fast simulation methods are also important, allowing the reduction of computational resources, while accurately describing the shape and correlations of the showers.

The aim is to parameterize showers in order to describe them via a probability density function, that can be used for the simulation of particle showers. This talk will focus on the description of radial and angular distributions of pion showers, based on test beam data taken with the AHCAL Prototype. The combined description of longitudinal, radial, and angular distributions is also discussed.