Can you see a neutrino?
Not directly — but we can see the secondary particles a neutrino produces when it occasionally interacts with matter. Detectors like IceCube and Super-Kamiokande catch the resulting flash of Cherenkov light or scintillation.
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Cherenkov radiation
2 articles tagged with Cherenkov radiation.
Cherenkov radiation: the blue light that catches the ghost particle
When a charged particle moves through a medium faster than light can, it emits a faint cone of blue light. That light is how IceCube, Super-Kamiokande, and KM3NeT detect neutrinos.