•Lack
of solar neutrinos confirmed by Kamiokande II detector in Japan. (Using different detection method)
•
•Possible explanation in terms of
Neutrino physics
–3
different types of Neutrinos:
•electron, muon, and tau neutrinos
•Sun
generates and Cl detectors see only electron neutrinos
•Can
electron neutrinos can change to another type on way here?
–These
“neutrino oscillations” are possible if neutrino has non-zero
mass
–
–Kamiokande
II evidence of muon neutrinos becoming electron ones
–
•Read “Window on Science
7-2” on “scientific
faith”
•
•Neutrino mass may have implications for
“cosmology”
•Neutrinos also used to study supernova
1987A