The development of cascades initiated by nuclear interaction

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Abstract
The distribution function describing the development of electromagnetic cascades has been derived under the assumption that the primary particlos are y-rays with a certain energy spectrum and angular spread. By comparing experimental results on the lateral distribution of electrons in cascades iniitiated by nuclcar interactions with the calculations presented here one may obtain information on some characteristic features of ‘jets’. At large distances from the cascade ‘core’, the elcctron distribution is identical with that derived from ordinary cascade theory, thus indicating that the angular spread of the primary y-rays can then be neglected. This result is of interest when measurements in large air showers are compared with theory.