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Percolation and cosmic ray physics above $10^{17}$eV

P. Brogueira·J. Dias de Deus·M. C. Espirito Santo·M. Pimenta
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Abstract

We argue that the energy dependence of the average position of the shower maximum, $\bar X_{max}$, and of the number of produced muons, $N_μ$, can be explained by a change, around $10^{17}$eV, in the energy dependence of the inelasticity $K$, which decreases with the energy above the string percolation threshold.

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P. Brogueira, J. Dias de Deus, M. C. Espirito Santo, M. Pimenta. 2005-11-23. Percolation and cosmic ray physics above $10^{17}$eV. https://arxiv.org/abs/hep-ph/0511279

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