Separation of Electrons and Pions in the SND Detector Calorimeter

摘要

A method is developed for discriminating between e(+)e(-) - e(+)e(-) and e(+)e(-) - pi(+)pi(-) events in the center-of-mass (cms) energy range of 0.5 to 1.0 GeV by energy deposition in the electromagnetic calorimeter of the SND detector using a machine learning algorithm. Identification efficiencies for e(+)e(-) - e(+)e(-) and e(+)e(-) - pi(+)pi(-) events are 99.6 and 99.8%, respectively.