Clash of the Titans: ultra-high energy KM3NeT event versus IceCube data
This study investigates a high-energy muon detected by KM3NeT that suggests a neutrino energy exceeding 10 PeV, which conflicts with IceCube's lack of similar ultra-high-energy events. The analysis quantifies this tension across diffuse flux, cosmogenic, and point source scenarios, concluding that none can fully explain the event without creating a significant statistical discrepancy.