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Seminar
Searching for New Physics with Neutrinos: From DUNE to Neutrino Telescopes
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Australia/Sydney
Description
This talk is split into two parts. I will start by presenting the potential of the DUNE near detector to search for new physics by focusing on axion-like particles (ALPs). In particular, I will show how the liquid-argon detector can explore currently unconstrained regions of ALP parameter space, and I will also discuss how a future gaseous-argon detector or running DUNE in beam-dump mode could provide an essentially background-free environment for new physics searches. The second part of the talk is focused on the 220 PeV neutrino event recently reported by KM3NeT.
The absence of comparable events in IceCube creates a 2-3σ tension, depending on the type of neutrino source. The 220 PeV neutrino detected at KM3NeT traversed approximately 150 km through rock and sea, whereas neutrinos from the same location in the sky would cross only about 10 km of ice to reach IceCube. I will show how this difference in propagation distance helps to resolve this tension by considering models with light sterile neutrinos that partially convert into active neutrinos.
The absence of comparable events in IceCube creates a 2-3σ tension, depending on the type of neutrino source. The 220 PeV neutrino detected at KM3NeT traversed approximately 150 km through rock and sea, whereas neutrinos from the same location in the sky would cross only about 10 km of ice to reach IceCube. I will show how this difference in propagation distance helps to resolve this tension by considering models with light sterile neutrinos that partially convert into active neutrinos.