Abstract
Performance of the Compressed Baryonic Matter (CBM) experiment for the measurement of proton and positively charged kaon directed flow is presented as a function of collision centrality, particle transverse momentum and rapidity. The analysis is based on Au + Au collisions at the top SIS100 beam momentum of 12 \(A\) GeV/c simulated with the DCM-QGSM-SMM event generator and transported through the CBM material using GEANT4 Monte-Carlo package. The calculations of flow coefficients are performed with respect to projectile spectator symmetry plane. A data-driven procedure is used for event reconstruction, centrality determination, particle identification and symmetry plane reconstruction. Dependence of the results on the details of the spectator symmetry plane estimation and purity of particle identification are studied by comparing the reconstructed signals with the event generator input.
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Funding
The work on performance for proton flow measurement is supported by the Ministry of Science and Higher Education of the Russian Federation, Project “Fundamental properties of elementary particles and cosmology” no. 0723-2020-0041, the Russian Foundation for Basic Research (RFBR) funding within the research project no. 18-02-40086, the European Union’s Horizon 2020 research and innovation program under grant agreement no. 871072, the National Research Nuclear University MEPhI in the framework of the Russian Academic Excellence Project (contract no. 02.a03.21.0005, 27.08.2013). Work done as a part of the charged kaon flow performance study is supported by the Russian Science Foundation grant 17-72-20234.
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Golosov, O., Klochkov, V., Kashirin, E. et al. CBM Performance for Multi-Differential Measurements of Proton and Charged Kaon Directed Flow. Phys. Part. Nuclei 53, 207–211 (2022). https://doi.org/10.1134/S1063779622020320
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DOI: https://doi.org/10.1134/S1063779622020320