High Energy Physics - Phenomenology
[Submitted on 6 Apr 2023]
Title:Azimuthal fluctuations and number of muons at the ground in muon-depleted proton air showers at PeV energies
View PDFAbstract:Muon counting is an effective strategy for discriminating between gamma and hadron-initiated air showers. However, their detection, which requires shielded detectors, is highly costly and almost impossible to implement in large ${\rm km^2}$ environmentally sensitive areas. This work shows that the gamma/hadron discriminators, based on the new $LCm$ variable and the number of muons, have equivalent proton rejection levels at the PeV energies. It is, therefore, possible to build, at an affordable cost, a large, high-performant, wide field-of-view gamma-ray observatory.
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