Rafael Alves Batista
Institut d'Astrophysique de Paris (Paris, France)
In this talk, I will focus on the triad of (ultra-)high-energy messengers: cosmic rays, neutrinos, and gamma rays. I will begin with a summary of the state of affairs of the field, reviewing some key theoretical developments and recent experimental results. I will then explore the essential components required for building theoretical models that explain these observations. Particular emphasis will be placed on modelling the propagation of these messengers, including their interactions with matter and radiation fields, as well as with the poorly understood cosmic magnetic fields. Finally, I will discuss the prospects for constructing a unified and self-consistent model of the Universe at ultra-high energies and the implications such a model would have for astrophysics, cosmology, and fundamental physics.
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris