Neutrino astronomy with KM3NeT/ARCA

Neutrino astronomy is a rapidly developing field that aims to observe the universe through neutrinos. Neutrinos are elusive subatomic particles that can travel vast distances through space, barely interacting with matter. Unlike photons or charged particles, neutrinos can pass through dense cosmic objects, providing insights into some of the most extreme and energetic phenomena, such as supernovae, gamma-ray bursts, and black holes.
The KM3NeT/ARCA detector is a neutrino observatory designed to detect high-energy neutrinos from astrophysical sources. It is situated deep in the Mediterranean Sea, off the Italian coast. ARCA consists of large arrays of digital optical modules that detect the faint flashes of Cherenkov light produced when neutrinos interact with water molecules.
This dissertation centers on neutrino astronomy using the KM3NeT/ARCA detector. It includes research on reconstructing light patterns to determine neutrino properties, a crucial aspect of neutrino astronomy. Additionally, the dissertation presents new sensitivity studies for the full detector and a search for neutrino sources in recently collected data. Although no significant excess of neutrinos was detected, the sensitivity has improved considerably, indicating the potential for new discoveries in the near future.