Greisen function and its ability to describe air-shower profiles

0578147 - FZÚ 2024 RIV US eng J - Journal Article
Stadelmaier, Maximilian Klaus - Vícha, Jakub - Novotný, Vladimír
Greisen function and its ability to describe air-shower profiles.
Physical Review D. Roč. 107, č. 10 (2023), č. článku 103056. ISSN 2470-0010. E-ISSN 2470-0029
R&D Projects: GA ČR(CZ) GM21-02226M; GA MŠMT(CZ) EF18_053/0016627; GA MŠMT LTT18004; GA MŠMT(CZ) EF18_046/0016010; GA MŠMT EF16_013/0001402
Research Infrastructure: AUGER-CZ II - 90102
Institutional support: RVO:68378271
Keywords : ultra-high-energy cosmic rays * extensive air showers
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 5, year: 2022
Method of publishing: Limited access
https://doi.org/10.1103/PhysRevD.107.103056

Ultrahigh-energy cosmic rays are almost exclusively detected through extensive air showers, which they initiate upon interaction with the atmosphere. The longitudinal development of these air showers can be directly observed using fluorescence detector telescopes, such as those employed at the Pierre Auger Observatory or the Telescope Array. In this article, we discuss the properties of the Greisen function, which was initially derived as an approximate solution to the electromagnetic cascade equations, and its ability to describe the longitudinal shower profiles. We demonstrate that the Greisen function can be used to describe longitudinal air-shower profiles, even for hadronic air showers. Furthermore, we discuss the possibility to discriminate between hadrons and photons from the shape of air-shower profiles using the Greisen function.
Permanent Link: https://hdl.handle.net/11104/0347191