Abstract
Calculations have been made of some features of extensive air showers (EAS) expected in the near vertical direction at different altitudes in the atmosphere for two models of the nucleon-air-nucleus interaction. Results are given for the electron and hadron components. It is shown that the lateral density distribution of hadrons in EAS is well described by the functionϱ H(r) dr=(N H(>E)/8!πr 0 2 ) exp $$\left[ { - \sqrt[4]{{{r \mathord{\left/ {\vphantom {r {r_0 }}} \right. \kern-\nulldelimiterspace} {r_0 }}}}} \right]$$ dr, wherer 0 is a parameter weakly dependent on the multiplicity law of secondary-particle production. The most useful energy for measurement of the total number of hadrons in showers with different numbers of particles is derived from the calculations.
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