Abstract

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Highlights

  • The BM@N (Baryonic Matter at the Nuclotron) is the first experiment at the accelerator complex of NICA-Nuclotron [1]

  • The BM@N tracking system is based on Gas Electron Multipliers (GEM) detectors, mounted inside the BM@N analyzing magnet

  • The GEM detectors are integrated into the BM@N experimental setup and data acquisition system

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Summary

Introduction

The BM@N (Baryonic Matter at the Nuclotron) is the first experiment at the accelerator complex of NICA-Nuclotron [1]. Physics measurements will be performed in conditions of high beam intensities up to 106 ions per second in collisions with large multiplicity of charged particles. This requires the use of detectors with the capacity to resolve multiple tracks produced at very high rate. Detectors based on the GEM technology posses all the mentioned characteristics combined with the capability of stable operation in a strong magnetic field. For this reason, two coordinate GEM detectors were chosen for the central part of the tracking system. These detectors were installed into the BM@N set-up for technical runs with the deuteron beam in December 2016 and with the carbon beam in spring 2017

GEM detector technology and construction
FEE and DAQ
GEM gas gain measurements
Beam results
Conclusions

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