Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 6: Instrumentation III

HK 6.3: Talk

Monday, March 28, 2022, 14:30–14:45, HK-H5

Development of the trigger barrel for PUMA — •Christina Xanthopoulou, Sabrina Zacarias, Dominic Rossi, and Alexandre Obertelli — Technische Universität Darmstadt

The antiProton Unstable Matter Annihilation project aims at the study of the periphery of short-lived nuclei by using low-energy antiprotons. The antiprotons annihilate with the nucleons on the surface of the nucleus which results in pions that pass through the detection system. By identifying the produced pions we are able to determine the ratio of protons to neutrons on the nuclear surface. The detection system consists of one time projection chamber and a trigger barrel. With the time projection chamber we are able to reconstruct the pions trajectories. The trigger barrel is composed of plastic scintillators to which Silicon PhotoMultipleres are attached. It will be used to trigger the trajectory measurements of the pions passing the time projection chamber. Simulations for the characterization of the trigger barrel are performed. Additionally, a trigger barrel test setup is build and used for benchmarking the simulation outcome. In the poster, the current status on the simulations and the test setup for the trigger barrel are presented.