Speaker
Description
Recent measurements of ultra-high-energy cosmic rays provide key insights into the most energetic phenomena in the Universe. The Pierre Auger Observatory, the world’s largest detector for ultra-high-energy cosmic rays, combines a large surface array of particle detectors and radio antennas with fluorescence telescopes to study extensive air showers, produced by particles with energies above $10^{17}$ eV. We will present recent results on the energy spectrum, arrival-direction anisotropies, and mass composition of cosmic rays at the highest energies. These measurements provide important constraints on the origin and propagation of ultra-high-energy cosmic rays and offer new insights into particle interactions at energies far beyond those achievable in terrestrial accelerators.