Response of a Highly Segmented Extruded Lead Glass Calorimeter to Electrons and Pions Between 15 and 45 GeV/C

摘要

We have studied the energy resolution, hadron rejection and ability to distinguish overlapped events for a highly segmented electromagnetic calorimeter using unpolished extruded lead glass bars. Energy resolution is in agreement with previous measurements of more conventional calorimeters. Hadron rejections of 10 exp -3 are achieved, without the use of particle momentum information. Overlapped events of pi exp +- - gamma are shown to be rejected at the level of 10 exp -2 . A powerful method for predicting shower leakage energy is also presented. (ERA citation 08:039304)