Year: 2025
Type: conference-paper
Abstract: Radio emissions from extensive air showers (EAS) provide a valuable tool for detecting ultra-high-energy (UHE) astroparticles. In this context, several radio arrays focus on detecting highly inclined EAS, as this enables the observation of Earth-skimming UHE neutrinos, in addition to cosmic rays and gamma rays. The reconstruction of such inclined events relies heavily on a thorough understanding of the radio features observed on the ground, with the Cherenkov cone being one of the most prominent. In this study, we demonstrate that the Cherenkov cone can be accurately described for inclined air showers using basic propagation principles. Furthermore, we have developed an analytical model that computes the expected opening angles of the cone and reproduces the asymmetry effects observed in simulations. The high accuracy of these computations can enhance current reconstruction methods and pave the way for the development of new ones.
DOI: 10.22323/1.501.0240
Institutions: Centre National de la Recherche Scientifique, Consejo Nacional de Investigaciones Científicas y Técnicas, Institut d'Astrophysique de Paris, Sorbonne Université, Instituto de Física La Plata, Universidad Nacional de La Plata, Laboratoire de Physique Nucléaire et de Hautes Énergies, Laboratoire de Physique Subatomique et des Technologies Associées, Institut National de Physique Nucléaire et de Physique des Particules, Université de Nantes, Nantes Université
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Awards: G196419191, G6649312515, G7321284446
OpenAlex ID: W4414420558
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