We offer to your attention a preprint “Detector for setting up beam convergence and determining luminosity at the interaction point on the MPD NICA” P13-2022-40 published by the JINR Publishing Department. The authors are Sergey Avdeev et al.

A detector for adjusting the convergence of beams at the point of interaction of the MPD (Multi-Purpose Detector) installation at the NICA collider (Nuclotron-based Ion Collider fAcility) is discussed.

Simulation of the detector operation for Au+Au collisions at √S_NN = 11 GeV is performed. It is shown that background events from scattering on residual gas give a negligible contribution to the detector’s samples.

The question of how to use a detector to adjust beam alignment is discussed. The calibration procedure for obtaining absolute luminosity in the MPD interaction zone with the help of this detector is considered.

The investigation has been performed at the Veksler and Baldin Laboratory of High Energy Physics JINR.

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