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Joined 2026-09-21 Message
Incoming links: Nobel Lecture: Birth of neutrino astrophysics by Masatoshi Koshiba
Kamiokande 2026-10-18
Kamiokande, associated with Masatoshi Koshiba, was an underground water Cherenkov detector viewed by photomultipliers. Improved water purity and reduced background enabled solar neutrino observations. A concentration of reconstructed recoil directions toward the Sun distinguished a source signal above an approximately direction-independent background.[ref]
For solar neutrinos, Electron elastic scattering supplies a directional recoil, with different cross sections for active neutrino flavors. Neither the Homestake experiment deficit nor the SN 1987A neutrino burst alone established neutrino oscillation; later evidence compared complementary channels and propagation effects.[ref]
Nobel Lecture: Birth of neutrino astrophysics by Masatoshi Koshiba. pp. 1013, 1016–1018: scattering and combined oscillation evidence
SN 1987A 2026-10-18
SN 1987A supplied a prompt terrestrial record of neutrino emission from a core-collapse supernova through its SN 1987A neutrino burst.[ref]
Nobel Lecture: Birth of neutrino astrophysics by Masatoshi Koshiba. p. 1015: supernova signal and collapse interpretation