Nuclear-nuclear collision centrality determination by the spectators calorimeter for the MPD setup at the NICA facility

Journal Article · Tue Jan 15 04:00:00 EST 2013 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778812120046· OSTI ID:22156489

Golubeva, M. B.; Guber, F. F.; Ivashkin, A. P. ^[1]; Isupov, A. Yu. ^[2]; Kurepin, A. B. ^[1]; Litvinenko, E. I.; Migulina, I. I.; Peresedov, V. F. ^[2]

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1. Russian Academy of Sciences, Institute for Nuclear Research (Russian Federation)
2. Joint Institute for Nuclear Research (Russian Federation)

The work conditions of the hadron calorimeter for spectators registration (Zero Degree Calorimeter, ZDC) were studied for the heavy nuclei collisions with the several GeV invariant energy. The ZDC simulations were performed for the MPD (Multi-Purpose Detector) at the NICA (Nuclotron-based Ion Collider fAcility) collider, which are under developement at the Joint Institute for Nuclear Research (JINR, Dubna). Taking into account the spectator nuclear fragments leads to a nonmonotonic dependence of the ZDC response on the impact parameter. The reason for this dependence studied with several event generators is the primary beam hole in the ZDC center. It is shown, that the ZDC signal should be combined with a data from other MPD-NICA detector subsystems to determine centrality.

• OSTI ID: 22156489
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 76; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
BEAM HOLES
CALORIMETERS
COLLISIONS
DUBNA
GEV RANGE 01-10
HADRONS
HEAVY NUCLEI
IMPACT PARAMETER
IONS
JINR
NUCLEAR FRAGMENTS
SIMULATION