Detecting charged pions emitted from antiproton annihilation on nuclei is a well-established technique utilized to determine annihilation vertex positions, crucial for several experiments in the antimatter field. For the past decade, a detector composed of plastic scintillating bars has been integral to the ASACUSA experiment, employed in both antihydrogen formation experiments and annihilation cross-section measurements. This work outlines its design and operations, focusing on its role in these experimental applications.
The scintillating bar detector of the ASACUSA experiment / V. Mascagna, C. Amsler, M. Bayo, H. Breuker, M. Bumbar, M. Cerwenka, G. Costantini, R. Ferragut, M. Giammarchi, A. Gligorova, G. Gosta, H. Higaki, E.D. Hunter, C. Killian, V. Kraxberger, N. Kuroda, M. Leali, G. Maero, C. Malbrunot, Y. Matsuda, S. Migliorati, D. Murtagh, A. Nanda, L. Nowak, M. Rome, M.C. Simon, M. Tajima, V. Toso, S. Ulmer, L. Venturelli, A. Weiser, E. Widmann, Y. Yamazaki. - In: POS PROCEEDINGS OF SCIENCE. - ISSN 1824-8039. - 480:(2025 Jul 07), pp. 1-8. ( EXA-LEAP : Exotic Atoms and Related Topics Conference and the Low Energy Antiproton Conference : August, 26th - 30th Wien 2024) [10.22323/1.480.0077].
The scintillating bar detector of the ASACUSA experiment
M. Giammarchi;G. Gosta;G. Maero;M. Rome;V. Toso;
2025
Abstract
Detecting charged pions emitted from antiproton annihilation on nuclei is a well-established technique utilized to determine annihilation vertex positions, crucial for several experiments in the antimatter field. For the past decade, a detector composed of plastic scintillating bars has been integral to the ASACUSA experiment, employed in both antihydrogen formation experiments and annihilation cross-section measurements. This work outlines its design and operations, focusing on its role in these experimental applications.
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