Criteria for selection of J/Ψ → e+e− decays detected by the CBM setup in Au-Au collisions at an energy of 25 GeV/nucleon

The possibility of detecting J/Ψ → e + e − decays produced in the Compressed Baryonic Matter (CBM) experiments in Au-Au collisions at a beam energy of 25 GeV/nucleon is studied. Special selection criteria are formulated and the optimal target thickness is identified in order to facilitate the selection of signal events in the presence of a dominant background. An efficient method for determining the rejection boundaries for the mentioned selection criteria is proposed. It is shown that the criteria used make it possible to accumulate sufficient J/Ψ → e + e − decay statistics in a fast and reliable way.