Development of a new algorithm for the neutral trigger of the CMD-3
https://doi.org/10.29235/1561-2430-2024-60-4-317-326
Abstract
In order to improve the energy and coordinate resolution of the neutral trigger of the СMD-3 detector, it is proposed to use a clustering algorithm based on overlapping “windows” of trigger cells. The window of 2 × 2 crystals is considered to be a single trigger cell, and its signal amplitude value is sent for processing by the trigger system. Based on MonteCarlo simulation, the optimal number of trigger cells to assign to the cluster for energy reconstruction of particles hitting the calorimeter in real time was determined.
Keywords
Supporting agencies: The work was supported by the Russian Science Foundation (grant no. 23-42-10025, https:// rscf.ru/project/23-42-10025/) and the Belarusian Republican Foundation for Fundamental Research (grant no. Ф23РНФ-118).
About the Authors
D. V. Shoukavy
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus
Belarus
Dzmitry V. Shoukavy – Ph. D. (Physics and Mathematics), Leading Researcher
68-2, Nezavisimosti Ave., 220072, Minsk
S. N. Harkusha
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Russian Federation
Russian Federation
Siarhei N. Harkusha – Researcher
68-2, Nezavisimosti Ave., 220072, Minsk
A. O. Gorkovenko
Budker Institute of Nuclear Physics of the Siberian Branch of the
Russian Academy of Sсiences; Novosibirsk State Technical University
Russian Federation
Russian Federation
Anton O. Gorkovenko – Research Engineer; Assistant
11, Akademik Lavrent’ev Ave., Novosibirsk, 630090
20, K. Marks Ave., 630073, Novosibirsk
D. N. Grigoriev
Budker Institute of Nuclear Physics of the Siberian Branch of the
Russian Academy of Sсiences; Novosibirsk State Technical University
Russian Federation
Russian Federation
Dmitry N. Grigoriev – Ph. D. (Physics and Mathematics), Leading Researcher; Associate Professor
1, Akademik Lavrent’ev Ave., Novosibirsk, 630090
20, K. Marks Ave., 630073, Novosibirsk
References
1. Khazin B. Physics and Detectors for VEPP-2000. Nuclear Physics B – Proceedings Supplements, 2008, vol. 181–182, pp. 376–380. https://doi.org/10.1016/j.nuclphysbps.2008.09.068
2. Aguillard D. P., Albahri T., Allspach D., Anisenkov A., Badgley K., Baeßler S., Bailey I. [et al.] (Muon g – 2 Collaboration). Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm. Physical Review Letters, 2023, vol. 131, no. 16, art. ID 161802. https://doi.org/10.1103/PhysRevLett.131.161802
3. Ignatov F. V., Akhmetshin R. R., Amirkhanov A. N., Anisenkov A. V., Aulchenko V. M., Bashtovoy N. S., Berkaev D. E [et al.] (CMD-3 Collaboration). Measurement of the Pion Form Factor with CMD-3 Detector and Its Implication to the Hadronic Contribution to Muon (g − 2). Physical Review Letters, 2024, vol. 132, no. 23, art. ID 231903. https://doi.org/10.1103/physrevlett.132.231903
4. Epshteyn L. B., Akhmetshin R. R., Grigogiev D. N., Kazanin V. F., Melnik A. S., Shoukovy Dz. V., Yudin Yu. V. The level-1 trigger system for the electromagnetic calorimeter of the COMET experiment. Journal of Instrumentation, 2017, vol. 12, art. ID C01064. https://doi.org/10.1088/1748-0221/12/01/c01064
5. Shoukavy Dz. V., Grigoriev D. N., Epshteyn L. B., Yudin Yu. V. Electromagnetic calorimeter of the trigger system for the COMET experiment. Vestsі Natsyianal’nai akademіі navuk Belarusі. Seryia fіzіka-matematychnykh navuk = Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics series, 2019, vol. 55, no. 1, pp. 97–109 (in Russian). https://doi.org/10.29235/1561-2430-2019-55-1-97-109
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