Inference of the mass composition of cosmic rays with energies from 10^18.5 to 10^20 eV using the Pierre Auger Observatory and deep learning - Halim, Adila Binti Abdul; Catalani, Fernando; Souza, Vitor de; Santos, Edivaldo Moura; Oliveira, Cainã de; Peixoto, Carlos Jose Todero (Physical Review Letters, 2025)