Abstract
High energy electrons, pions and protons have been detected with two liquid argon calorimeters. Measurements of the linearity and energy resolution of the detectors have been performed. Since one of the detectors was subdivided into 80 sections, measurements of the lateral and longitudinal development of hadronic cascades were possible. The results are in good agreement with Monte Carlo simulations. The spatial and angular resolutions of the detector have been evaluated, typical values are | σ E / ≃ 17%, σ x = 20 mm and σ θ ≃ 100 mrad at 20 GeV hadron energy. Electrons and protons were identified by exploiting their different shower development; the probability of misidentification was less than 10 −3.
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