Abstract
Tests of a radial wire drift chamber for the H1 experiment at the HERA ep-collider were performed at a test beam at the CERN SPS. These types of chambers, part of the H1 forward track detector, are designed to determine accurate vector track segments and to identify electrons by means of dEdx and transition radiation (TR) detection. The electron/pion discrimination has been evaluated at particle momenta from 5 to 50 GeV/c using gas mixtures containing 15 to 30% xenon. Methods and results of this analysis are presented.
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