Relating Charged Particle Multiplicity to Impact Parameter in Heavy-Ion Collisions at NICA Energies

Authors :: Dim Idrisov
Petr Parfenov
Arkadiy Taranenko
Vinh Ba Luong
Source :: Particles, Volume 4, Issue 2, Pages 24-287, Particles, Vol 4, Iss 24, Pp 275-287 (2021), Particles 4(2), 275-287 (2021). doi:10.3390/particles4020024
Publication Year :: 2021
Publisher :: MDPI AG, 2021.
Abstract: Particles 4(2), 275 - 287 (2021). doi:10.3390/particles4020024<br />The size and evolution of the matter created in relativistic heavy-ion collisions strongly depend on collision geometry, defined by the impact parameter. However, the impact parameter cannot be measured directly in an experiment but might be inferred from final state observables using the centrality procedure. We present the procedure of centrality determination for the Multi-Purpose Detector (MPD) at the NICA collider and its performance using the multiplicity of produced charged particles at midrapidity. The validity of the procedure is assessed using the simulated data for Au + Au collisions at $√s_{NN}$ = 4–11 GeV.<br />Published by MDPI AG, Basel

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