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| | Discovery of the Omega-minus Particle |
 | | The presence and properties of the neutral particles are established by analysis of the tracks of their charged decay products and application of the laws of conservation of mass and energy. |
 | | A major prediction was that a particle (named by Gell-Mann the omega-minus), an isotopic singlet with spin = 3/2, positive parity, mass of roughly 1,680 MeV, negative charge, baryon number +1, strangeness = -3, and stable to strong decay, should exist to complete the 3/2+ baryon decuplet. |
 | | It was therefore a major triumph for the scheme when the omega-minus, a baryon with the precise mass, charge and strangeness predicted, was discovered in 1964 by a team of physicists from Brookhaven, the University of Rochester and Syracuse University, led by Nicholas Samios of Brookhaven, using the 80-inch bubble chamber. |
| www.bnl.gov /bnlweb/history/Omega-minus.asp (537 words) |
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