Science Past from September 10, 1960 issue

By Science News, 08:47 AM August 26, 2010

PRIMARY CLUE TO MATTER — The shortest lifetime of an elementary particle — only a quarter of a millionth of a billionth of a second — gives a primary clue to the structure of matter.... [S]cientists have known for about ten years of the neutral pi-meson and have been trying to pin down its lifetime. The new measurement gives theoretical physicists a new universal constant and now they must figure out why it exists or relate it to another constant. When the neutral pi-meson breaks up or...

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