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EAS data at the mountain level and a shape of the CR spectrum beyond the break

Oct 24, 2016
4 pages
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Abstract: (arXiv)
In the most works which deal with EAS the CR energy spectrum is deduced by means of the model defined dependence E0=a⋅NeαE_0=a\cdot{N_e}^{\alpha}. An electron total number NeN_e is evaluated by integration of the NKG-function f(r). This algorithm breaks down for young EAS with age parameter s∼0s\sim0. This work shows, that part of the young EAS becomes large in the range Ne≥107N_e\geq10^7, it cause to divergency of the NeN_e integral for them and distorts the shape of EAS (CR) spectrum. A final analysis of the experimental data permits to conclude that EAS spectrum has local maximum at Ne∼109N_e\sim10^9, which results in a decrease of the EAS spectrum slope for Ne≥107N_e\geq10^7 (inverse break or "knee"). A local maximum can arise because of the additional CR component in the range E0≥10E_0\geq10 PeV.
Note:
  • 4 pages, 2 figures
  • spectrum: slope
  • energy spectrum
  • electron
  • air
  • showers