SMuK 2021 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 24: Hadron Structure and Spectroscopy V

HK 24.3: Talk

Thursday, September 2, 2021, 17:15–17:30, H3

Monte Carlo Simulations to estimate the Efficiency of an Electromagnetic Calorimeter to detect neutral Pions — •Julian Moik¹, Frank Maas^1,2,3, Alaa Dbeyssi¹, Luigi Capozza¹, Oliver Noll¹, David Rodriguez Pineiro¹, Sahra Wolff¹, Peter Bernd Otte¹, Dong Liu¹, Alexander Christian Greiner¹, and Samet Katilmis¹ for the PANDA collaboration — ¹Helmholtz-Institut Mainz, Germany — ²Institute of Nuclear Physics, Johannes Gutenberg University, Mainz, Germany — ³Prisma Cluster of Excellence, Mainz, Germany

The PANDA experiment at the future FAIR facility requires a complex detector system, whose backward calorimeter is being developed by the group at the Helmholtz Institute in Mainz. For the FAIR Phase-0 experiment at the electron accelerator MAMI it is planned to use this detector for a measurement of the electromagnetic transition form factor of the neutral pion.

To estimate the efficiency of the experimental setup regarding the pion detection, a Monte Carlo simulation of the pion decay and the detection of the decay photons in the software environment *primasoft* was performed. By reconstructing the pion events from the photon energy measurement, the efficiency of the pion detection was determined as a function of the pion energy and momentum direction. This analysis helped to choose between two different calorimeter geometries and allowed for the calculation of the effective cross-section of the pion production in this experimental setup.