24-28 February 2020
Budker Institute of Nuclear Physics
Asia/Novosibirsk timezone

Methods for centrality determination in nucleus-nucleus collisions with forward hadron calorimeters at the BM@N experiment.

Not scheduled
Budker Institute of Nuclear Physics

Budker Institute of Nuclear Physics

11, akademika Lavrentieva prospect, Novosibirsk, Russia
Board: 24
Poster Calorimetry


Mr Sergey Morozov (Institute for Nuclear Research RAS)


The BM@N (Baryonic Matter at Nuclotron) is the fixed target experiment at NICA-Nuclotron (JINR, Dubna, Russia) accelerator complex. The main goal of the BM@N experiment is studying properties of dense nuclear matter produced in the ion-ion collisions. First experiments were done for carbon, argon and krypton ions beams with C, Al, Cu and Pb targets at beam energies up to 4.5 AGeV. The methods of central events selection on event-by-event base with old ZDC (Zero Degree Calorimeter) for these reactions will be presented. The new Forward Hadron Calorimeter (FHCAL) with transverse and longitudinal segmentation will be used to measure the collision centrality in heavy ion experiments after the BM@N upgrade. The FHCAL has the beam hole in the center due to expected high beam intensities. New forward quartz hodoscope is developing to be placed in the beam hole to measure the charge of fragments. New methods of centrality determination with the FHCAL and forward quartz hodoscope will be discussed.

Primary author

Mr Sergey Morozov (Institute for Nuclear Research RAS)


Dr Alexander Ivashkin (INR RAS) Mr Alexey Makarov (zherebtsova.lisa@gmail.com) Mrs Elizaveta Zherebtsova (Institute for Nuclear Research RAS) Dr Fedor Guber (Institute for Nuclear Research RAS) Mr Marina Golubeva (Institute for Nuclear Research RAS) Mr Nikolay Karpushkin (Institute for Nuclear Research RAS)

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