Seminario CAPA: “Ultra-high-energy cosmic messengers”.- Jueves 10 de abril
El jueves 10 de abril de 2025 a las 12:00 h tendrá lugar un nuevo seminario del Centro de Astropartículas y Física de Altas Energías (CAPA) con Rafael Alves Batista, profesor en Institut d'Astrophysique de Paris y Sorbonne Université, Francia (https://www.8rafael.com/en/). Impartirá el seminario de título “Ultra-high-energy cosmic messengers”.
La charla tendrá lugar en el Seminario de Física Nuclear, en el edificio A (Físicas) y podrá seguirse en remoto a través del enlace de Zoom:
https://cern.zoom.us/j/69892845148?pwd=fuJePaqVHSVmRbABKOBxrtsgLaUOnQ.1
Resumen:
The origins of the most energetic particles in the Universe have been a long-standing puzzle. In the quest to identify their sources, it is crucial to understand how these particles are accelerated, how they escape their production sites, and which paths they take on their journey to Earth. The multimessenger frame work has proven to be a powerful tool for exploring the Universe at these extreme energies.
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 the 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 heir 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.
