This looks like the most natural question regarding ultra-high energy cosmic rays, but it’s also one of the hardest ones to be answered.
The possibility of some level of Lorentz invariance violation at very-high energies has been proposed in the context of theories beyond the Standard Model, quantum gravity and string theory.
2022 International Day of Women and Girls in Science
With marking the International Day of Women and Girls in Science, the Auger Collaboration wants to raise more awareness and to suppport a change in culture which will benefit everyone.
The Pierre Auger Collaboration recently introduced a deep-learning-based method to reconstruct the depth of maximum air shower profiles