Reconstructing Air-Shower Observables using a Universality-Based Model at the Pierre Auger Observatory

2025/07/17 by Maximilian Stadelmaier, Stadelmaier, Maximilian · 1 citation
Earth and Planetary Sciences · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #FOS: Physical sciences #High Energy Astrophysical Phenomena (astro-ph.HE) #High Energy Physics - Phenomenology (hep-ph) #Meteorological Phenomena and Simulations

paper · pdf · doi:10.48550/arxiv.2507.13209

openalex publication_date 2025/07/17 · openalex created_date 2025/10/18 · openalex updated_date 2026/07/28

Abstract

Based on solutions of the cascade equations, the air-shower universality is a framework that for all air showers with the same energy, zenith angle, depth of shower maximum, and muon number predicts the same longitudinal, lateral, and energy distributions of electromagnetic shower particles. We employ a universality-based model of shower development that incorporates hadronic particle components to reconstruct observables from extensive air showers produced by ultra-high-energy cosmic rays. The model can estimate key parameters, such as the depth of the shower maximum and the number of muons at the event level. We discuss the performance of the reconstruction algorithm using both air-shower simulations, and preliminary results obtained from the Phase-I data of the Pierre Auger Observatory.

Cited by

• Probing UHECR sources - Constraints from cosmic-ray measurements

Related

• Applying Extensive Air Shower Universality to Ground Detector Data
• Particle Physics with the Pierre Auger Observatory
• Probing hadronic interactions with measurements at ultra-high energies\n with the Pierre Auger Observatory
• Test of hadronic interaction models with data from the Pierre Auger\n Observatory
• Constraints and measurements of hadronic interactions in extensive air showers with the Pierre Auger Observatory