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Fluctuations of Xmax and Primary Particle Mass Composition in the Range of Energy 5 10^{17} - 3 10^{19} ev by Yakutsk Data

S. P. Knurenko·A. A. Ivanov·V. A. Kolosov·Z. E. Petrov·I. Ye. Sleptsov·G. G. Struchkov
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Abstract

The experimental distributions of $\Xmax$ obtained with the Yakutsk EAS array at fixed energies of $5 \times10^{17}$, $1\times10^{18}$ and $5\times10^{18}$ eV are analysed. A recent version of the QGSJET model is used as a tool of our analysis. In the framework of this model, the most adequate mass composition of primary particles satisfying the experimental data on $\Xmax$ is selected.

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S. P. Knurenko, A. A. Ivanov, V. A. Kolosov, Z. E. Petrov, I. Ye. Sleptsov, G. G. Struchkov. 2005-07-07. Fluctuations of Xmax and Primary Particle Mass Composition in the Range of Energy 5 10^{17} - 3 10^{19} ev by Yakutsk Data. https://doi.org/10.1142/s0217751x05030429

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