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neutrino-oscillation (...?)

muon neutrino produced at J-PARC accelerator
muon neutrino produced at J-PARC accelerator
muon neutrino detected at the near detector
muon neutrino detected at the near detector
muon neutrino detected at the near detector
muon neutrino detected at the near detector
it oscillates to tau neutrino at Super-K!
it oscillates to tau neutrino at Super-K!
and sometimes to electron neutrino...?
and sometimes to electron neutrino...?
all neutrinos observed with 20 inch PMT at Kamioka
all neutrinos observed with 20 inch PMT at Kamioka

Photo by Masashi Yokoyama