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"Super" Japanese Site Gears Up to Solve Neutrino Puzzle

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Science  03 Nov 1995:
Vol. 270, Issue 5237, pp. 729-730
DOI: 10.1126/science.270.5237.729


Kamioka, Japan—In an old lead mine, 1 kilometer underground, Japanese physicists are about to put 50,000 tons of water into a giant tank lined with 11,200 photomultiplier tubes. Their quarry: Unprecedented numbers of the elusive particles called neutrinos. Their goal: An answer to the burning question, Do neutrinos have mass?