Omega-Minus Particle, First Observation

Omega-Minus Particle, First Observation

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Credit: JOHN GIANNICCHI/SCIENCE PHOTO LIBRARY

Caption: First observation of omega-minus particle. In this historic photograph from the 80-inch (200cm) bubble chamber at the Brookhaven National Laboratory, a negative kaon enters at bottom left & collides with a proton in the chamber's hydrogen to produce 3 particles, including the omega-minus, which consists of three strange quarks. The omega travels a short distance before decaying into a negative pion, which veers to the right across the bottom part of the picture, & a neutral xi particle which leaves no track. Discovery of the omega in 1964 confirmed Murray Gell-Mann & Yuval Ne'eman's classification of subatomic particles, the Eightfold Way .

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Keywords: brookhaven, brookhaven national laboratory, bubble chamber, bubble chamber photograph, collision, eightfold way, electron track, electron tracks, enhanced, gell-mann, high-energy physics, kaon, neeman, nuclear physics, omega minus, omega-minus particle, particle collision, particle physics, particle track, particle tracks, physics, pion, quark, strange, strange particle, strange quark, subatomic, subatomic particles, the particle odyssey

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