The Solar neutrino problem and the long struggles of more than 30 years for solving this problem;

介绍了太阳中微子短缺之谜以及长达三四十年的奋斗历程；

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Winkler and Kappl used the Super-Kamiokande neutrino detector to search for such high energy solar neutrinos.

Winkler和Kappl使用了超级神冈中微子探测器来搜寻这种高能太阳中微子。

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Several experimental results on solar neutrino missing and on atmospheric muon neutrino missing are described.

这些结果表明存在中微子振荡，即中微子具有质量。

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But if both it and the explanation for the solar-neutrino deficit were true, there would have to be a fourth sort of neutrino one which its proponents refer to as a sterile neutrino.

ECONOMIST: Neutrinos

Besides being a useful source of dark matter, it may explain the solar-neutrino deficit (the gap between prediction and observation would be caused by a different mutation, from electron neutrinos into undetectable tau neutrinos).

ECONOMIST: Neutrinos

One explanation for the solar-neutrino deficit (only a third of the predicted number have been detected) is that electron-neutrinos produced by nuclear-fusion reactions in the sun's core mutate into the other two types, which are harder to detect.

ECONOMIST: The news that neutrinos have mass is both good and bad