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Various positron distributions are obtained using an approach developedearlier for the description of electron-photon showers in axially alignedsingle crystals. Based on these distributions, characteristics of the positronyield measured in recent experiments are calculated. Theoretical estimationsdisplay a rather good agreement with experimental results obtained using 3 to10 GeV electrons aligned to the <111> - axis of the tungsten crystals.Comment: 10 pages, 6 Postscript figure

Comparison of theory with experiment for positron production from high-energy electrons moving along crystal axes