Realistic Simulation of BM@N GEM Detectors: Model Implementation and Testing


The Lorentz shift of electrons in a magnetic field is taken into account with simulating the response of a GEM detector for the BM@N experiment. Dependences of the determined coordinate x on the track angle, the values of the Lorentz shift of electrons and its dispersion for the gas mixture ArC4H10 were obtained. The momentum resolution was obtained as a function of the momentum for the deuteron-carbon (dC) process, and the invariant mass of the Λ-hyperon was determined. The obtained results are close to the first results of experimental data collected in the technical run in interactions of the deuteron beam of 4 AGeV with different targets.

[1] J. Adams et al, Nucl. Phys. A 757, 102-183 (2005)

[2] K. Adcox et al, Nucl. Phys. A 757, 184-283 (2005)

[3] Studies of baryonic matter at the Nuclotron (BM@N)

[4] Simulation and Analysis Frameworks for MPD and BM@N at NICA

[5] Analysis meeting