Statistical multidimensional separation of the electron and pion events in the iron-scintillator hadronic calorimeter

The statistical multidimensional combined algorithm for selecting the electron and pion events, which is based on different spatial electromagnetic and hadronic shower developments is proposed. The method has been tested on the basis of the test beam data of the ATLAS tile iron-scintillator hadronic calorimeter and demonstrated its efficiency (impurities are below 0.2%). The proposed algorithm can be used to analyze the data of the modern combined calorimeters like the ATLAS and CMS detectors at the LHC.