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Using Projectile Spectators for Centrality Determination in Heavy-Ion Collisions with the CBM Experiment

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Abstract

In experiments with heavy-ion collisions produced particles or spectator nucleons and fragments can be used for determination of the initial collision geometry. This allows to experimentally group collisions into classes of initial geometry using a quantity called centrality. The Monte-Carlo Glauber model coupled with a negative binomial distribution, which models particles multiplicity, is typically used in experiments to map parameters of the collision geometry and centrality classes. In these proceedings we propose a similar procedure for centrality determination using projectile spectators instead of the produced particles multiplicity. The status of its implementation for the Compressed Baryonic Matter (CBM) experiment at FAIR is presented.

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REFERENCES

  1. C. Simon et al. (CBM Collab.), “The physics program of the CBM experiment,” Proc. Sci. POD2017, 014 (2018).

  2. J. Adam et al. (ALICE Collab.), “Centrality dependence of the charged-particle multiplicity density at midrapidity in Pb–Pb collisions at \(\sqrt {{{s}_{{NN}}}} \) = 5.02 TeV,” Phys. Rev. Lett. 116, 222302 (2016); arXiv:1512.06104.

  3. K. Aamodt et al. (ALICE Collab.), “Centrality dependence of the charged particle multiplicity density at mid-rapidity in Pb-Pb collisions at \(\sqrt {{{s}_{{NN}}}} \) = 2.76 TeV,” Phys. Rev. Lett. 106, 032301 (2011); arXiv:1012.1657 [nucl-ex].

    Article  ADS  Google Scholar 

  4. M. L. Miller, K. Reygers, S. J. Sanders, and P. Steinberg, “Glauber modeling in high energy nuclear collisions,” Ann. Rev. Nucl. Part. Sci. 57, 205–243 (2007); arXiv:nucl-ex/0701025.

  5. V. Klochkov et al. (CBM Collab.), “Centrality determination in heavy-ion collisions with the CBM experiment,” J. Phys. Conf. Ser. 798, 012059 (2017).

    Article  Google Scholar 

  6. C. Loizides, J. Nagle, and P. Steinberg, “Improved version of the PHOBOS Glauber Monte Carlo,” SoftwareX 1–2, 13–18 (2015); arXiv:1408.2549 [nucl-ex].

    Article  ADS  Google Scholar 

  7. M. Baznat, A. Botvina, G. Musulmanbekov, V. Toneev, and V. Zhezher, “Monte-Carlo generator of heavy ion collisions DCM-SMM,” Phys. Part. Nucl. Lett. 17, 303–324 (2020); arXiv:1912.09277.

  8. A. Botvina et al., “Multifragmentation of spectators in relativistic heavy ion reactions,” Nucl. Phys. A 584, 737–756 (1995).

    Article  ADS  Google Scholar 

  9. J. Aichelin, E. Bratkovskaya, A. Le Fèvre, V. Kireyeu, V. Kolesnikov, Y. Leifels, V. Voronyuk, and G. Coci, “Parton-hadron-quantum-molecular dynamics: A novel microscopic n-body transport approach for heavy-ion collisions, dynamical cluster formation, and hypernuclei production,” Phys. Rev. C 101, 044905 (2020); arXiv:1907.03860.

  10. V. Kireyeu, J. Aichelin, E. Bratkovskaya, A. Le Fèvre, V. Lenivenko, V. Kolesnikov, Y. Leifels, and V. Voronyuk, “The PHQMD model for the formation of nuclear clusters and hypernuclei in heavy-ion collisions,” Bull. Russ. Acad. Sci.: Phys. 84, 957–961 (2020); arXiv: 1911.09496.

  11. CBM Progress Report 2019: CBM-PR-2019 (GSI, Darmstadt, 2020).

  12. “Technical Design Report for the CBM Projectile Spectator Detector (PSD)”, Ed. by F. Guber and I. Selyuzhenkov (GSI, Darmstadt, Germany, 2015).

    Google Scholar 

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Funding

The work 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 funding within the research project no. 18-02-40086, the European Unions 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).

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  1. for the CBM Collaboration

Authors and Affiliations

  1. National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moscow, Russia

    I. Segal, I. Selyuzhenkov & E. Kashirin

  2. GSI Helmholtzzentrum fГјr Schwerionenforschung GmbH, Darmstadt, Germany

    I. Selyuzhenkov

  3. Facility for Antiproton and Ion Research in Europe GmbH, Darmstadt, Germany

    E. Lavrik

Authors
  1. I. Segal
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  2. I. Selyuzhenkov
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  3. E. Kashirin
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  4. E. Lavrik
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Correspondence to I. Segal.

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Segal, I., Selyuzhenkov, I., Kashirin, E. et al. Using Projectile Spectators for Centrality Determination in Heavy-Ion Collisions with the CBM Experiment. Phys. Part. Nuclei 53, 361–365 (2022). https://doi.org/10.1134/S1063779622020733

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  • DOI: https://doi.org/10.1134/S1063779622020733

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