Mainz 2022 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Computing II

HK 39.2: Vortrag

Mittwoch, 30. März 2022, 14:15–14:30, HK-H5

Event Analysis for the FAIR Phase-0 Experiment at MAMI — •Julian Moik¹, Luigi Capozza¹, Alaa Dbeyssi¹, Alexander Greiner¹, Samet Katilmis^1,2,3, Dong Liu¹, Frank Maas^1,2,3, Oliver Noll^1,2, Peter Bernd Otte¹, David Rodriguez Pineiro¹, Christoph Rosner¹, and Sahra Wolff¹ for the PANDA collaboration — ¹Helmholtz-Institut Mainz, Germany — ²Institute of Nuclear Physics, Johannes Gutenberg University, Mainz,Germany — ³PRISMA Clus- ter 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 EMP group at the Helmholtz Institute in Mainz. A preliminary version of this detector will be used in a PANDA FAIR Phase-0 experiment at the electron accelerator MAMI for a measurement of the electromagnetic transition form factor of the neutral pion.

Primasoft is a Geant4 based Monte Carlo simulation environment designed specifically for this experiment. By working with simulated pion events, analysis methods can be developed while the experiment is still under construction. In this context a neural network was developed to assist in the event reconstruction process. More specifically a feed forward network was implemented to improve the position reconstruction and the energy estimation of measured particles, thereby improving the error of the kinematic variables.