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Title: Omega-Minus Particle, First Observation
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".
Category: Science: History • PHYSICS
Credit: Album / Science Source / Omikron
Image size: 2598 × 3641 px | 27.1 MB
Print size: 22.0 × 30.8 cm | 1022.8 × 1433.5 in (300 dpi)