Word: meson
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Dates: during 1940-1949
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...committed itself to an extensive program of basic atomic research. At the Knolls, outside Schenectady, the company will build a 300-acre research center to house its dangerous new activities. Meanwhile, armed with their 100,000,000-volt betatron and other high-voltage machines, its scientists are studying the "meson," a mysterious, sub-atomic particle which may hold the key to a revolutionary course of atomic power...
...back in again, got hold of herself, finally reemerged. Reporters let go with questions, cameramen with flash bulbs. A spotlight's fuse blew. "I'm so awfully tired," said Dr. Meitner. Relatives bustled her off. Next day she was in at the unveiling of the man-made meson (see SCIENCE). Next stop, after a rest: Washington, DC., where she will teach at Catholic University...
...Mesons disintegrate in a few millionths of a second. They had been observed before only in the debris left by the impact of a cosmic ray. Now, for the first time, they could be bred in the laboratory. What happens to the proton (or neutron) after the meson leaves it? One theory: it turns into no-one-yet-knows-what. Another theory: the X ray "condenses" into matter within the particle, and then bursts out again in the form of a meson...
...misnomer, since it was not an electron), the "barytron" (also a misnomer, because it means "heavy particle," whereas the particle is lighter than a proton). A name meaning "intermediate particle" was clearly in order, and so practically all U. S. physicists now call it the "mesotron" or "meson...