Abstract
The BM@N is a fixed target experiment aimed to study (multi) strange hyperons production and to search for hypernuclei in nucleus-nucleus collisions at beam ion energies up to 4.5 A GeV. The BM@N is also the most suitable experiment for the study of fragmentation in heavy ion collisions. The BM@N powerful analyzing dipole magnet deflects the charged spectators and partially separates them from the neutron spectators. The separate measurements of charged and neutron spectators allow to determine the geometry of nuclear collisions (centrality and reaction plane orientation) as well as to study the mechanisms of fragmentation and the equation of state of nuclear matter. The measurements of the heavy charged fragments and proton spectators will be performed with the quartz and scintillator hodoscopes correspondingly, while the forward hadron calorimeter will be used to measure the neutron spectators. Results of simulation of the proposed forward detector system are discussed, showing that the new experimental fragmentation data for heavy ion collisions are needed to validate fragmentation models.
Similar content being viewed by others
REFERENCES
T. Ablyazimov et al., Conceptual Design Report of BM@N (2013), http://nucloweb.jinr.ru/nica/CDR.html.
M. Kapishin, in Proceedings of Corfu Summer Institute “School and Workshops on Elementary Particle Physics and Gravity” (CORFU2018), Corfu, Greece, 2018 (Proc. Sci.), p. 1
F. Guber, D. Finogeev, M. Golubeva, A. Ivashkin, A. Izvestnyy, M. Kapishin, N. Karpushkin, S. Morozov, and O. Petukhov (BM@N Collab.), J. Instrum. 15 (2020).
S. Mashnik, K. Gudima, R. Prael, A. Sierk, M. Baznat, and N. Mokhov, CEM03.03 and LAQGSM03.03 Event Generators for the MCNP6, MCNPX, and MARS15 Transport Codes (2008), 0805.0751.
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, 4 (2020).
A. Ivashkin, D. Finogeev, M. Golubeva, F. Guber, A. Izvestnyy, N. Karpushkin, and S. Morozov, “Compact segmented hadron calorimeter for detection of low energy spectators at MPD/NICA facility,” Nucl. Instrum. Methods Phys. Res., Sect. A 958, 162240 (2020).
Technical Design Report for the CBM Projectile Spectator Detector (PSD), Ed. by F. Guber and I. Selyuzhenkov (GSI, Darmstadt, 2015).
S. Morozov, D. Finogeev, M. Golubeva, F. Guber, A. Ivashkin, A. Izvestnyy, M. Kapishin, N. Karpushkin, and O. Petukhov, “Methods of signal processing and cosmic muon calibration for the BM@N sampling lead/scintillator hadron calorimeter,” J. Instrum. 15, C05050 (2020).
N. Karpushkin, M. Golubeva, F. Guber, A. Ivashkin, and S. Morozov, “ML approaches for centrality determination with forward hadron calorimeters in heavy ion reactions,” submitted to Phys. Part. Nucl. (2020).
Funding
This work was partially supported by the Russian Foundation of Basic Research Grant no. 18-02-40081.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The authors declare that they have no conflicts of interest.
Rights and permissions
About this article
Cite this article
Guber, F., Golubeva, M., Ivashkin, A. et al. Study of the Spectator Matter in Heavy Ion Collisions at the BM@N Experiment. Phys. Part. Nuclei 53, 626–630 (2022). https://doi.org/10.1134/S1063779622020332
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063779622020332