The 5ᵗ ͪ International Symposium on Cosmic Rays and Astrophysics (ISCRA-2025)

EAS Maximum Depth from the Space-Time Structure of Cherenkov Light Based on the TAIGA-HiSCORE Data

25 Jun 2025, 10:45

15m

Б-100 (National Research Nuclear University MEPhI)

Original Talk Cosmic rays (nuclei, gammas, neutrinos) of very high energies (> 100 TeV) Cosmic rays (nuclei, gammas, neutrinos) of very high energies (> 100 TeV)

Speaker

Mark Ternovoy (ISU)

Description

A new simulation using the CORSIKA code without accelerating coarsening of the results was performed for the energy range of 1-100 PeV, taking into account pulse formation at the input of the optical station of the TAIGA-HiSCORE array. Refined relationships between the steepness parameter of the lateral distribution function (LDF) and the light pulse FWHM at distances of 200-400 m and the relative position of the EAS maximum have been obtained. The application of the new simulated relationships to measure the EAS maximum depth ($X_{max}$) by the data of the 3 seasons of the TAIGA-HiSCORE observations (2021 – 2024) are shown.

Presentation Materials

Report-ISCRA2025_Ternovoy.pdf