SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 3: Instrumentation II
HK 3.2: Vortrag
Montag, 20. März 2023, 17:00–17:15, SCH/A.101
First tests of the time projection chamber and the trigger barrel of the PUMA experiment — Alexandre Obertelli1,2, •Clara Klink1,2, Sabrina Zacarias2, Christina Xanthopoulou2, Francois Butin1, Frank Wienholtz2, and Emmanuel Pollacco3 — 1CERN, Genève, Switzerland — 2TU Darmstadt, Darmstadt, Germany — 3CEA-IRFU, Paris-Saclay, France
The antiProton Unstable Matter Annihilation (PUMA) experiment plans on using antiprotons as probe for the nucleonic composition in the tail of the nuclear density distribution for stable and exotic nuclei. Antiprotons annihilate with the nucleons on the nucleus' surface: the combined charge of the annihilation products will reveal the neutron-to-proton content at the nuclear surface. This allows to investigate quantum phenomena like Halo nuclei and neutron skins. The products of the annihilation will be detected in a time projection chamber surrounded by a plastic-scintillator trigger barrel. In this talk, the working principle of the PUMA detection system will be explained, as well as the data acquisition system. The results of first tests with the system will be presented.