A method of electromagnetic shower identification and measuring of its position in segmented calorimeters

The Monte Carlo investigation of spatial resolution for electromagnetic showers of the calorimeter of the Spherical Neutral Detector (SND) has been performed. For description of the transverse distribution of energy in an electromagnetic shower the function α exp(−Rβ) is introduced. On its base the method of estimation of shower angles and the criterion of close photon separation have been worked out. It is shown that for the photons with the energy less than 700 MeV this method provides the best results compared to the other methods.