High and ultrahigh energy neutrinos: interactions and observations
SITP sign on 3rd floor of the Varian Physics Building
High-energy (HE; ~100 GeV to 100 PeV) and ultrahigh-energy (UHE; >~ 100 PeV) neutrinos are crucial for both particle physics and astrophysics, e.g., offering great opportunities to study neutrino interactions and test the Standard Model and beyond. Neutrino interactions are the cornerstone of all the measurements in neutrino experiments. Studying neutrino interactions also reveals new event classes (e.g., dimuons), offering novel measurement opportunities. In addition, neutrino interaction theory is both interesting and challenging: although neutrinos only participate in weak interactions (and gravity), neutrino interaction studies relevant to the experiments also significantly involve strong interactions and quantum electrodynamics.
In this talk, I will present the studies of the interactions and detection of sub-TeV--PeV--EeV neutrinos, including W-boson and trident production (1910.08090, 1910.10720, 2305.10497, 2406.16803), final state radiation (2403.07984; a QED radiative correction as large as 25% while completely overlooked by the community), and dimuons (2110.02974).