This project focuses on studying the muonic component of extensive air showers (EAS) produced by ultra-high-energy cosmic rays (UHECRs). Recent experimental results have shown an excess of muons compared to theoretical predictions, highlighting the need for a better understanding of muon behavior in air showers.
To achieve a more accurate measurement of the muon energy spectrum, this study explored the possibility of reconstructing the muon energy spectrum through computational simulations. These simulations combined measurements from MARTA (Muon Array with RPCs for Tagging Air showers) and AMIGA (Auger Muons and Infill for the Ground Array) detectors, both located beneath Cherenkov tanks at the Pierre Auger Observatory in the Infill region.
A total of 1,000,000 events were simulated, with muon energies ranging from 0 to 10,000 MeV. Initial results indicated that the proposed technique for reconstructing the muon energy spectrum is challenging. The correlation between measured points, representing the fraction of absorbed atmospheric muons, is lost when combining data from the two detectors, affecting the cumulative reconstruction of the muon energy spectrum.
Keywords: Muons, Ultra High Energy Cosmic Rays (UHECR), MARTA, AMIGA, Pierre Auger Observatory