Using 22 million HAWC air showers from June 2016, the authors show that a modified NKG function fits the lateral particle distribution well and that the lateral age parameter separates proton and iron simulations with a figure of merit above 1 above about 6 TeV.
Electron, Muon, and Hadron Lateral Distributions Measured in Air-Showers by the KASCADE Experiment
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abstract
Measurements of electron, muon, and hadron lateral distributions of extensive air showers as recorded by the KASCADE experiment are presented. The data cover the energy range from about 5x10^14 eV up to almost 10^17 eV and extend from the inner core region to distances of 200 m. The electron and muon distributions are corrected for mutual contaminations by taking into account the detector properties in the experiment. All distributions are well described by NKG-functions. The scale radii describing the electron and hadron data best are approx. 30 m and 10 m, respectively. We discuss the correlation between scale radii and `age' parameter as well as their dependence on shower size, zenith angle, and particle energy threshold.
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The lateral distribution function of cosmic-ray induced air showers studied with the HAWC observatory
Using 22 million HAWC air showers from June 2016, the authors show that a modified NKG function fits the lateral particle distribution well and that the lateral age parameter separates proton and iron simulations with a figure of merit above 1 above about 6 TeV.