SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 74: Poster
HK 74.12: Poster
Donnerstag, 23. März 2023, 17:30–19:00, HSZ EG
Correlation of hit and particle densities in EPICAL-2 — •Jan Schöngarth — Institut für Kernphysik, Goethe Universität Frankfurt
A prototype of a digital electromagnetic pixel calorimeter, EPICAL-2, consisting of alternating tungsten absorber and silicon sensor layers has been developed. EPICAL-2 has been designed in the context of the proposed ALICE-FoCal detector. High granular ALPIDE sensors are employed in EPICAL-2 and will be utilized in two layers of the FoCal detector.
The measurement of the electromagnetic shower energy E with EPICAL-2 is based on the number Npart of charged shower particles. The number Nhits of pixel hits is considered as a measure of Npart and thus E, as long as the particle density is low. In order to understand the relation between Nhits and Nparts under varying density conditions, both observables have been investigated per local area, as well as their correlation, in Allpix2 simulation, which includes the propagation of deposited charge carriers.
In this poster, the correlation of hit and particle densities is presented, aiming to provide input for EPICAL-2 to investigate saturation effects in areas of high particle density and for FoCal to circumvent detailed charge carrier propagation in simulation. The poster will present the current status of this analysis.
Supported by BMBF and the Helmholtz Association.